Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3341394 A
Publication typeGrant
Publication date12 Sep 1967
Filing date21 Dec 1966
Priority date21 Dec 1966
Publication numberUS 3341394 A, US 3341394A, US-A-3341394, US3341394 A, US3341394A
InventorsKinney George Allison
Original AssigneeDu Pont
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sheets of randomly distributed continuous filaments
US 3341394 A
Images(7)
Previous page
Next page
Description  (OCR text may contain errors)

- 1 3,341,394 SHEETS OF RANDOMLY DISTRIBUTED CONTINUOUS FILAMENTS Filed Dec. 21, 1966 G. A. KINNEY Sept. 12, 1967 '7 Sheets-Sheet l FIG.

ilk

vINVENTOR GEORGE ALLISON KINNEY BY ATTORNEY Sept-12, 1967 *G. A KINNEY 3,341,394

SHEETS OF RANDOMLY DISTRIBUTED CONTINUOUS FILAMENTS Filed Dec. 21, 1966 '7 Sheets-Sheet 2 FIG.5

FIG.4

INVENTOR AVJJ GEORGE ALLISON Kl EY ATTORNEY G. A. KINNEY Sept. 12, 1967 SHEETS OF RANDOMLY DISTRIBUTED CONTINUOUS FILAMENTS 21, 1966 7 Sheets-Shet 3 Filed Dec.

INVENTOR GECIRGE ALLISON KINN Y. BY M ATTORNEY G. A. KINNEY Sept. 12, 1967 Filed Dec.

7 Sheets-Sheet 4 VI ma N EN V M N O S L L A E G R O E G ATTORNEY G. A. KINNEY Sept. 12, 1967 SHEETS OF RANDOMLY DISTRIBUTED CONTINUOUS FILAMENTS 21, 1966 7 Sheets-Sheet '5 Filed Dec.

Fl 6. I'OA FIG. IOB

DISTANCE ALONG WEB (IN) INVENTOR GEORGE ALLISON KINNEY ATTORNEY I00 H0 I20 CV 0F FILAHENT SEPARATION G. A. KINNEY Sept. 12,1967

SHEETS OF RANDOMLY DISTRIBUTED CONTINUOUS FILAMENTS Filed Dec. 21, 1966 7 Sheets-Sheet 6 FIG. IIB

FIG. IIA

FIG. IID

FIG. IIC

INVENTOR GEORGE ALLISON KINNEY Y A m w A Sept. 12, 1967 G. A. KINNEY 3,341,394

SHEETS OF RANDOMLY DISTRIBUTED CONTINUOUS FILAMENTS Filed Dec. 21, 1966 7 Sheets-$heet 7 FIG.I3

naazavehia tjmwaw INVENTORQ GEORGE ALLISON KINNEY ATTORNEY United States Patent ()fifice 3,341,394 Patented Sept. 12, 1967 3,341,394 SHEETS F RANDOMLY DISTRIBUTED CUNTHNUOUS FILAMENTS George Allison Kinney, West Chester, Pa., assignor to E. 1. du Pont de Nemours and Company, Wilmington, Del., a corporation of Delaware Filed Dec. 21, 1966, Ser. No. 613,370 11 Claims. (Cl. 16172) This application is a continuation-in-part of copending application Ser. No. 439,361, filed Mar. 12, 1965, which in turn is a continuation-impart of application Ser. No. 133,736, filed Aug. 24, 1961, and now abandoned, which in turn is a continuation-in-part of application 'Ser. No. 859,614, filed Dec. 15, 1959, and now abandoned, and is also a continuation-in-part of copending application Ser. No. 515,308, filed Dec. 21, 1965, which in turn is a continuation-in-part of application Ser. No. 345,792, filed Feb. 18, 1964, which in turn is a continuation-in-part of application Ser. No. 200,257, filed June 5, 1962, and now abandoned, which in turn is a continuation-in-part of application Ser. No. 859,661 and Ser. No. 859,614, both filed Dec. 15, 1959, and now abandoned.

This invention relates to nonwoven Webs, fabrics and related sheet structures based on continuou filament synthetic organic fibers.

Continuous filament batts of glass fibers are known and are commercially available. The glass fibers are extruded from a melt and laid down in a random mass. The products are especially useful as insulating materials. In some cases, such glass fiber batts are used as reinforcing elements in plastic articles Where the fibers provide strength and rigidity. During laydown of the batts, filament aggregation occurs and ropy strands of a plurality of filaments are present in the nonwoven sheet product. Since the continuous filament fibers are usually only a small portion of the final product, the appearance of the fibers and the particular manner of distribution had. not been considered important. However, it is the aforementioned structural characteristic of the prior art sheets even apart from the materials employed that is responsible for most of their deficiencies for a variety of applications. Synthetic organic polymer materials are sometimes suggested in patent literature as equivalents for the glass fibers in such batts.

Nonwoven sheet structures derived from staple fiber materials have become increasingly popular for apparel and commercial uses. At the same time, such uses have brought awareness of the deficiencies of the products, in particular their lack of high tensile strength and resistance to tear. It is well-known that felts and papers are in general lacking in these properties. Many ingenious developments have been devised, chiefly, involving preferred binder materials, with the staple fiber sheet products of higher tensile and tear strength. It has not hitherto been recognized that high quality sheet structures of continuous filament synthetic organic fibers could be prepared so as to give uniform, strong sheet structures of the type desired in many applications now served by woven fabrics. Commercial operations have been restricted in that, except in certain limited applications such as insulating batts, and high tenacity binding tapes, use of continuous filament organic fibers has not been feasible.

Fiber processing techniques which are known in the art will not provide a sheet which is uniform in fiber distribution when continuous filament synthetic organic fibers are employed. Indeed this is no simple problem. Continuous filament synthetic organic fibers are normally prepared at high speeds. They are prepared in large bundles of 30, 50 or even several hundred individual fiber elements all emerging simultaneously from a multi-holed spinneret.

goal of producing nonwoven Deposition of a filament bundle from such a spinneret in the form of a web inevitably leads to ropy sheet structures composed of overlapping bundles of parallel filaments.

It is an object of the present invention to provide superior continuous filament synthetic organic fiber materials in the form of nonwoven sheet structures to permit greater utilization of the inherent high strength of modern synthetic fiber materials without the necessity of expensive and laborious weaving operations. It is a further object to provide substantially isotropic nonwoven sheet structures of uniform appearance and having superior tensile and tear strength which comprise continuous filament synthetic organic fibers distributed in the sheet in a homogeneous random manner.

Another object is to provide coherent nonwoven continuous filament webs which, even without bonding, are strong enough to permit continuous high-speed processing in such operations as dipping, impregnating, mechanical deforming, laminating and other commercial treatment, without requiring support of special handling of the web.

These objects have now been achieved in nonwoven sheet structures of continuous filament organic fibers in which the individual filament members are disposed in random configuration uniformly throughout the structure and in which the individual filamentary members are so disposed as to be separate, independent, and nonparallel in their relationship to one another. It is only through the utilization of continuous filament nonwoven structures that it is possible to achieve even to an approximate level the full utilization of the inherent tensile strength of the present day synthetic organic filaments in combination with high tear strength and flexibility in the nonwoven structure. This unusual combination of properties is obtainable with continuous filament structures because they do not require a high level of binder to obtain strong fabrics, thus tear resistance and flexibility can be maintained. With staple fiber structures, a higher level of binder is required to obtain strong fabrics and this is detrimental to both tear resistance and flexibility.

The sheet structures of this invention are composed of randomly distributed continuous synthetic organic filaments, preferably of a denier in the range of 0.1 to 30 (0.01 to 3.3 tex.). The individual filaments are separate and independent of each other as defined by a coefiicient of variation of filament separation, as hereinafter described, of less than 100%. The filament separation can also be characterized by a bunching coefficient, as hereinafter, described, of 0.7 or greater. Depending on the method of preparation, the individual filaments also may exhibit quite high levels of crimp. Such crimped filaments are highly desirable as components of the nonwoven webs of this invention, and it is a surprising and advantageous feature of these products that even the use of crimped filaments does not interfere with achieving the indicated high level of filament separation.

Because of the individual, random distribution of the filamentary elements of the nonwoven webs of this invention, and the substantial absence of filament aggregates, the sheets are uniform in appearance and in opacity to light. In general, such webs will have a high level of Web coherence and sheet strength, i.e., above 0.3 lb./in./oz./ yd. before bonding. Such high strength permits the webs even Without bonding to be readily handled at high speeds for any necessary or desired processing. In order to obtain such nonwoven sheet structures it is necessary that indii bunching is by means of the distribution of the filament separation distances. The coefficient of variation of the filament separation distances, hereinafter referred to as CJf is used to described this distribution because it provides a normalization so that webs of different density can be compared.

A web which is formed from bundles of filaments in which there has been no attempt to separate the filaments within the bundles will contain bunches of filaments and the CV will be much greater than 100%. Such a web will vary widely in density and appear blotchy. Similarly, webs containing numerous filament entanglements present CV values substantially above 100%. On the other hand, if special care is taken to provide for uniform filament separation prior to and during formation of nonwoven webs from continuous filaments, webs with a CV of less than 100% can be obtained. A surprising finding is that the nonwoven webs of this invention, which have a CV of 100 or less are markedly dififerent from webs having a CV greater than 100%. A nonwoven web of this invention, when compared with a nonwoven web of the same type of continuous filaments but having a coefficient of variation greater than 100%, will (1) have much greater strength at equal filament tenacity, (2) have significantly better :and more uniform appearance, (3) have greater abrasion resistance, and (4) have improved degree of waterproofness at a given weight of coating.

The bunching coefficient can also be used to describe the degree of filament aggregation. Bunching coefficient, designated BC, is defined as the ratio of the fiber spaces occupied by fibers relative to the total number of fiber spaces available. In this measurement the term fiber space represents the average space occupied by a fiber, and is calculated by dividing a unit distance of the non woven sheet structure by the total number of fibers oriented in a single direction in that unit length. The bunching coefficient concept is based on the premise that where the individual fibers disposed in the same direction are uniformly spaced from each other, each fiber space will contain one fiber and the bunching coefficient of such a structure will be unity. In a nonwoven which contains bunched fibers, some of the fiber spaces will contain bundles of fibers while others will be unoccupied and the bunching coefiicient of such a structure will be less than one. Bunching coefiicient, however, is insensitive to the location of the filaments within the fiber space, so that an accurate measure of the structural characteristics of the web is not always obtained. Since the distribution of distances between essentially parallel fialment segments does directly described the structure, CV is the preferred measure of filament separation.

A further characteristic which is essential to the structures of the invention is the random disposition of the component filaments. By random is implied the substantial absence of any anisotropy in the arrangement of the individual filaments. One test for randomness involves cutting representative square samples one inch or greater from the sheet under consideration and then counting the number of filaments terminating at each side of the square. In a random sheet of uniform basis weight, the number of filaments that will be encountered along any side of the square will vary by less than 20% from the number of filaments terminating at any other side of the square, regardless of the location or orientation of the square within the plane of the sheet. In preferred sheets, substantially the same number of filaments are encountered at each side of the square. A more precise and preferred procedure for measuring randomness than that described above determines the actual orientation or direction in which the component filaments lie within the plane of the nonwoven sheet. For a random sheet, there will be no predominant orientation of the filaments within the sheet, or expressed alternatively, there will be, on the average, as many filaments lying in one direction as in any other direction. This permits maximum utilization of the component filaments and leads to a sheet which has essentially equivalent properties in all directions in the plane of the sheet.

The aforementioned sheets are useful in many ways. In general, they are most desirable and most widely used in the form of bonded sheets; that is, fibrous webs in which the continuous filament fiber elements are interconnected to one another with strong physical or chemical bonds. Such bonds may derive from the fiber elements themselves or from some added binder material, of from some second structure or structural elements which are combined with the nonwoven sheet material already described. All of these difierent embodiments are aspects of the present invention.

The examples which are given below illustrate the production of unbonded webs as well as some of the many modifications of binder technology which may be employed in utilization of the principles of this invention. Bonding procedures which may be employed are summarized here to illustrate the wide range of useful techniques. One desirable embodiment involves nonwoven structures which have been prepared in a form providing co-spun binder fibers. Such binder fibers may consist of continuous filament of a similar chemical nature to the structural filament element but having a lower melting point. In one mode of operation, such binder filaments may be filaments of the same chemical composition but spun with a lower level of orientation or with no orientation. In a second mode of operation, the co-spun binder filaments may be highly oriented but may be of a copolymeric nature or of some other modification which provides a lower melting temperature. Preferred binder fibers for use with poly(hexamethylene adipamide) include polycaproamide filaments or copolymers, melt blends, etc., thereof with poly(hexamethylene adipamide). Preferred binder fibers for use with poly(ethylene terephthalate) include the isophthalate and hexahydro-terephthalate copolymers thereof.

Still another technique is the use of composite filaments as described in Breen, US. Patent 2,931,091. The composite filaments may comprise a high-melting structural polymer and a low-melting binder polymer in side-by-side relationship running the length of the filament.

Indeed it is not necessary that any different filaments be employed since the principle of self-bonding may be used, in which the bonds are provided by localized fusion, partial or complete, of individual portions of the fibers. Such fusion may be brought about by spark discharge through the web or the application of heat to highly localized, mechanically isolated portions of the web. Solvent bonding may be employed, using spray techniques or a solution dipping process. The solvent need not be a complete solvent for the polymer but a swelling agent or a wetting agent. It is also possible and within the scope of the present invention to comprehend webs which have been bonded by the application of a vaporous or gaseous material which is not itself chemically reactive with the polymeric compositions of the filaments but which bonds by virture of having excess heat content' Thus, steam or high temperature air or other vaporous material may be used to implement bonding. Finally, the webs may be rendered more coherent merely by pressing them as freshly prepared. This self-binding technique is surprisingly satisfactory and is sufficient to produce a structure useful for numerous applications as such. It is noted in this self-binding procedure that the inherent settability and crimp in the component filaments is believed to be in part responsible for the efficacy of the over-all operation. The instant nonwoven structures may also be rendered more stable to delamination by needling techniques (see, for example, Lauterbach & Norton, US. Patent 2,908,064).

In further modifications, it is possible to apply or codeposit resinous thermoplastic binder particles in the form of granules, powders, or fibrids such as those dcscribed in Morgan, US. Patent 2,999,788. In more familiar processing it is equally suitable to employ impregnation techniques using solutions, emulsions, dispersions or melts of resin binders to bring about the desired bond formation. Furthermore, it is well within the scope of this invention to apply to the unbonded webs after formation, intermediates suitable for the formation of polymeric materials to bring about polymerization of a binder polymer within the web, thus in a single step creating the polymeric binder and activating it to give a strong, bonded, highly coherent fabric. It is in the form of bonded fabrics that the nonwoven sheet structures of this invention are most desirable.

Bonding may be applied uniformly over the entire area of the fabric or in closely controlled patterned areas or in random patterned areas. Two or more different bonding techniques may be employed simultaneously or in sequence. In addition to bonding in itself, application of other materials to the nonwoven sheet structures of this invention may be employed for other purposes such as surfacing, modification of visual appearance or opacity or porosity or for providing other physical or chemical properties of a specific desired nature.

It is also possible to laminate the nonwoven structures of the present invention to films or fabrics which are in themselves thermoplastic or may contain thermoplastic elements which can be bonded to the present webs by the application of continuous or localized areas of heat. Within the scope of this aspect of the invention is included the lamination of the nonwoven sheet structures of this invention to metallic foils, and to impervious or pervious films. Such materials are useful for the preparation of protective coverings, vapor seals, conductive materials, dielectrics and other articles of commerce In all of the sheet structures described herein, it is the critical feature already set forth, that is, the high degree of randomness and uniformity of fiber separation Within the web which is the outstanding characteristic of these sheet products and which makes them unique and valuable.

A method by which it is possible to process continuously a bundle of parallel, synthetic organic fibers into a nonwoven sheet structure of the type described in the present invention, has been set forth in applicants copending application Ser. No. 515,308 filed Dec. 21, 1965. That application describes a process in which a running multi-filament bundle composed of continuous synthetic organic filaments is charged electrostatically under tension to a sufiicient level that, when the tension is released, the charge causes each filament to separate from adjacent filaments, and thereafter the filaments are collected on a receiver to form a nonwoven sheet product.

The filaments may be charged by a corona discharge maintained in the vicinity, by triboelectric contact with a suitable guide means or by other suitable electrostatic methods. The charging is accomplished while the filaments are under sufiicient tension that they do not separate until such tension is released, i.e., after they have been urged toward the receiver, whereupon they immediately separate and are then collected. In one embodiment, freshly formed melt-spun synthetic organic filaments are charged and are simultaneously oriented with a pneumatic jet, the action of which also serves to forward the charged filaments to the receiver.

The invention will be more readily understood by referring to the attached drawings, wherein In FIGURE 1, A and B show schematically alternative apparatus assemblies useful in producing webs of the invention from freshly spun and lagged yarn, respectively;

FIGURE 2 shows a modification of the FIGURE 1 apparatus;

FIGURE 3 shows in longitudinal section a pneumatic jet which may be used in combination with the apparatus of FIGURES 1 and 2;

FIGURE 4 shows another modification of the apparatus of FIGURE 1;

FIGURE 5 shows in longitudinal section the pneumatic jet used with the apparatus of FIGURE 4;

FIGURE 6 shows a modification of the apparatus of FIGURE 1 using an alternative charging means;

FIGURE 7 shows schematically further alternative apparatus assemblies wherein the filaments are drawn either mechanically with draw rolls or by a pneumatic jet and wherein the filaments are electrostatically charged with a corona discharge device;

FIGURE 8 shows schematically in longitudinal section, the nozzle portion of a pneumatic jet which may be used with either embodiment of the apparatus in FIG- URE 7;

FIGURE 9 shows schematically an optical apparatus suitable for the determination of randomness of nonwoven sheets;

FIGURES 10A and 10B are densitometer traces respectively of webs A and E made as described below in Examples III and VII respectively; and

FIGURES 11A and 11B are enlarged photographs of webs whose traces are shown in FIG. 10A and FIG. 10B. FIGS. 11C and 11D are enlarged photographs of Webs G and F, respectively, prepared as described below in Examples IX and VIII respectively; and

FIGURE 12 shows graphically the relationship between the tensile strength and the coefiicient of variation of filament separation distances for a series of nonwoven webs having the same filament strength.

FIG. 13 is a schematic representation of a web of the invention 6t) containing both matrix filaments 50 and binder filaments 51.

FIG. 14 is a side view schematic representation of a web of the invention 60 impregnated with a waterproofing composition 51.

FIG. 15 is a schematic representation of a web of the invention 60 laminated to a. self-supporting film 70.

Referring to embodiment A of FIGURE 1, freshly formed filaments 1 are spun through spinneret 2 and pass freely rotatable, i.e., nonsnubbing idler roll 3, whereupon the filaments 1 are converged into yarn or bundle 4. Yarn 4 then is pulled through pneumatic jet 5, which is continuously supplied with air under pressure through air inlet 6, making triboelectric contact with the tapered inlet section or throat 7 thereof. Optionally, the filaments 1 may pass directly to pneumatic jet 5 without prior convergence to a yarn provided that they (the filaments) make sufficient triboelectric contact with throat 7 of pneumatic jet 5 (i.e., provided that the spinneret 2 and pneumatic jet 5 are not disposed in-line with respect to one another). The pneumatic jet 5 (and hence the throat 7 portion thereof) is electrically grounded through lead 8. The charged filaments 9 issuing from pneumatic jet 5 are collected as sheet 10 on receiver 11 which, in this embodiment, is grounded through lead 12. The repelling effect due to the charge on the filaments 9 exiting pneumatic jet 5 is indicated diagrammatically by the arrow 13 emanating from within the filament region.

Alternatively, as shown in embodiment B of FIGURE 1, yarn 4 may be supplied to pneumatic jet 5 from a package 14, prior to which the yarn has been rendered receptive to charging (i.e., in a relatively anhydrous condition free from charge-diminishing contaminants or finishes). Preferably, the yarn is taken off the side of the package to minimize twisting of the yarn, which otherwise woulcl inhibit subsequent filament separation. In either embodiment (FIGURE 1; A or B), roll 3 need not be freely rotatable, rather it might be fixed to provide a degree of snubbing. The roll 3 also might be replaced by a bar or the like for the same purpose.

FIGURE 2 shows a modification of the FIGURE 1 apparatus wherein the yarn is charged triboelectrically by contact with guide 15 located intermediate roll 3 and pneumatic jet 5 (shown fragmentarily). Guide 15 is composed of a material which is capable of producing sufficient charge on the filaments in yarn 4 to separate the filaments from each other and maintain that separation until the strand strikes the receiver. Guide 15 is located above jet 5 so that the as-charged yarn enters the jet axially. Guide 15 may be slowly rotated and/ or traversed to reduce surface wear; it can be a circular pin as shown or may be a bar or the like. A certain degree of snubbing takes place on passing guide 15, depending on the coefficient of surface friction and the angle of wrap made by the yarn over the surface thereof. Additional snubbing would result from fixing roll 3 or its equivalent as earlier described.

FIGURE 3 shows in longitudinal section a pneumatic jet which can be used with the apparatus of FIGURES 1 and 2. Jet 5 is assembled from components 5a, 5b, and 5c with cap screws (not shown). The assembled jet consists of essentially cylindrical yarn passageway 19 (the extension 1% of which is shown fragmentarily) which is outwardly flared toward filament inlet 16 in entrance section 5a to form a guide throat 7. Air under pressure is supplied through inlet 6 to the plenum 18 and enters filament passageway 19 through the annular slit 17. In the present embodiment, the air passing through slit 17 encounters the filaments at an angle of about 15 thereto, whereby a forwarding motion is imparted to the filaments. The composition of entrance section 5a (hence guide throat 7) is important to over-all process results; in the present embodiment, entrance section 5a is readily interchangeable.

In operation with any of the above-described apparatus, the yarn, i.e., the filament bundle, is forwarded from the supply means and urged to the receiver means by the action of the pneumatic jet. In the case of freshly spun filaments, the pneumatic jet (or equivalent forwarding means) is located beyond the point where the filaments are substantially completely solidified or quenched, as are usually the associated guide means unless they are of the non-snubbing variety. These precautions prevent sticking of the individual filaments. Simultaneously, the individual filaments are charged to a high potential, positive or negative, depending on the yarn and guide compositions, by virtue of their triboelectric contact therewith. A similar charging effect results from maintaining a corona discharge in the upstream vicinity of the pneumatic jet. Accordingly, as the filaments issue from the jet and are urged toward the receiver means, they immediately separate, owing to the forces of electrostatic repulsion. Partly due to the impetus received at the jet and partly due to the attraction of the filaments toward the grounded or oppositely charged receiver, they are deposited on the receiver as a compact unitary structure, i.e., as the desired nonwoven batt, sheet, web, or the like.

Referring to FIGURE 4-, freshly formed filaments 1 are spun through spinneret 2, pass as shown over bar guides 20, 21 and 22 thence to pneumatic jet 5 supplied with air under pressure through inlet 6. Pneumatic jet 5 embodies extended filament passageway extension 19 flared outwardly at the terminus 23. The charged filaments 9, which separate on exiting the extension of jet 5, are collected on receiver 11, an aluminum plate. The various components downstream from spinneret 2 are grounded through leads 12. The guide bars 20, 21 and 22 are 1 in. x 1 in. with rounded edges and are composed of chromic oxide. Guide bar 21, i.e., the functional surface thereof, is offset from the filament line by 2.5 in. Pneumatic jet 5 is drawn in greater detail in FIGURE 5 wherein the reference numerals have substantially the same significance as those in FIGURE 3.

FIGURE 6 schematically illustrates another and highly desirable embodiment which involves the use of corona discharge as the electrostatic charging means. Molten polymer is extruded through a multi-hole spinneret 2, in the form of fine filaments 1. The continuous filaments pass through an electrostatic charging zone consisting of a set of corona discharge points 24 supplied with a high voltage by source 25, together with a target electrode 26, which is grounded. The charged filaments pass through a pneumatic jet 5, supplied with air at 6, which forwards them toward a collecting mechanism. The action of the pneumatic jet establishes positive tension on the filaments, causing them to undergo molecular orientation by drawing in the space between the spinneret and the jet. As the filaments emerge from the outlet 23 of the jet, the like electrical charges carried by the individual filaments cause them to repel one another and deposit on the collecting device in random, individual, nonparallel disposition. The collecting device shown consists of an endless belt 11 running over rollers 27, and backed up by a grounded electrode 28. The deposited filaments form a web 10 which passes through consolidating rolls 29 and then on to optional later processing steps, such as bonding, coating, laminating, embossing, etc.

Chargeable continuous synthetic organic filaments which are useful for the purpose of this invention include those comprised of polyamides, such as poly(hexamethylene adipamide), polycaproamide and/or copolymers thereof; polyesters, such as poly(ethylene terephthalate), poly(hexahydro-p-xylylene terephthalate), and/ or copolymers thereof; polyhydrocarbons, such as polypropylene and polyethylene; polyurethanes, polycarbonates, polyacetals, polyacrylics, vinyl polymers, vinylidene polymers, and the like. Filaments of different polymers may be charged and laid on the receiver simultaneously. Preferred polymers are the melt-spinnable ones (see FIG. 1A) which can be processed from polymer to nonwoven web in a single continuous operation. Otherwise the filaments usually require preparation prior to charging, etc., by drying, removal of solvent, possible adjustment of finish, and the like.

Depending on the particular mode of filament prepa ration, the individual filaments may exhibit a high level of crimp superimposed upon the random arrangement of each filament within the sheet. The concept of filament crimp is understood in the art. In a filament crimp the amplitude of the departure from a straight line is less than 3 times the radius of curvature of the crimp, the latter being always less than 0.5 inch. The presence of crimp in the filaments can contribute to the utility of the sheet. For example, finished structures based on sheets wherein the individual filaments exhibit crimp at levels in excess of about 30 crimps per inch are useful in apparel applications, owing to their enhanced softness and drapability. At crimp levels in excess of about crimps per inch, the effect is especially pronounced. At crimp levels less than about 30 crimps per inch, the articles are stiffer, hence are best suited for the more demanding industrial applications, e.g., tarpaulins. Crimp enhances the stability of the sheets and contributes to improved covering power.

Crimped filaments can be obtained by orienting the filaments immediately subsequent to the preparation thereof. Representative of such a process is the one described in Hebeler, US. Patent 2,604,689. Variations of this basic procedure are applicable to melt-spun filaments generally; the process is termed spin-drawing. It is especially useful with filaments of poly(hexamethylene adipamide), polycaproamide, and poly(ethylene terephthalate), including copolymers thereof. In the case of most spun-drawn polyamides, the crimp develops spontaneously after a few minutes standing. The development of crimp is accelerated by heat and/ or moisture, i.e., by relaxing the filaments. In the case of poly(ethylene terephthalate), or the like compositions, a distinct relaxation step is required, during which the filaments shrink, crimp develops and, in many instances, the property of spontaneous extensibility is achieved (see Kitson and Reese, US. Patent 2,952,879). Relaxation can be effected as a separate operation apart from sheet preparation by heating the sheet, or during sheet formation proper by heat ing (steam, hot air, or infra-red radiation) the filaments within or downstream from the pneumatic jet. The filaments may be collected on a hot water bath to effect relaxation simultaneous with collection. In the case of filaments supplied in accordance with FIGURE 1B, the filaments may already be crimped, and so long as such crimp does not impede filament separation, the method is a satisfactory one. Crimp can also be obtained in filarnents by the process described in Kilian, US. Patent 3,118,012, or by the use of two-component filaments as disclosed in Breen, US. Patent 2,931,091. Crimp also is obtainable in filaments composed of thermoplastic polymers by the deformation thereof over a sharp surface such as a blade or edge over which the filaments make an acute angular pass. The development of Crimp in such products also is enhanced by relaxing conditions. Other crimping procedures may also be employed for other polymer compositions, such as polyhydrocarbons, e.g., polypropylene. The presence of crimp in the filaments tends to cause filament entanglement and may require more careful control.

The sheets and webs of this invention may be made in varying densities. High-bulk, low-density webs, for example, are particularly useful for many nonapparel uses. Fabric densities below 0.1 g./cc. may be prepared, especially when highly crimped fibers are present. Higher density materials, in the range 0.2 to 0.5 g./cc., are useful, while high-density webs 0.5 g./cc. and higher, are also valuable.

DETERMINATION OF COEFFICIENT OF VARIA- TION OF FILAMENT SEPARATION DISTANCES is) In order to measure the distance between filaments in a nonwoven web, it is often necessary to section the structure longitudinally. This may be done with unbonded webs by simple delamination; however, with bonded Webs, this is not satisfactory since the initial structure is disturbed in the delamination procedure. Satisfactory sections can be obtained by a technique which involves imbedding a 2 in. x 0.5 in. sample of web in a curable epoxy resin composition. After curing overnight, the sample can be sliced longitudinally with a microtome into sections 30 to 4-0 microns thick. This method has been found to be satisfactory for both bonded and unbonded webs. The distances between the filaments are then measured with a projection microscope set at 100x magnification for filaments having a denier of 4 or less and at 50X magnification for filaments having a denier greater than 4. Separation distances are measured along a line which covers t least 2 in. of web; preferably however, at least 3 in. of web are scanned in which case it is necessary to imbed two samples of the web. The filament segments involved in the count are those which are perpendicular within 12 to the line of count. At least 200, and preferably 400 filaments are counted in order to characterize a given sample. The precision of the coefiicient of variation which is calculated from the filament distances is of the order of 13%.

DETERMINATION OF BUNCHING COEFFICIENT Number f fiber spaces occupied by fibers Total number of fiber spaces available 10 Where all fiber elements are completely parallel, and exactly uniformly spaced, the bunching coefficient is unity. The actual bunching coefiicient may be determined by taking a photograph of the web, ordinarily of a sample not greater than 5 mils thick, and counting the number of fibers crossing a given line segment at right angles to that line (using an angular tolerance level of not over 2 in considering or not considering each fiber). The total number of fibers counted is equal to the total number of fiber spaces in that line segment. The average fiber space width is calculated by dividing the segment length by the number of fibers. A scale is now constructed with unit distances equal to the average fiber space width. With this scale, the number of fiber spaces occupied by at least one fiber is determined. For accurate results, measurements are made in several directions, and averaged.

DETERMINATION OF RANDOMNESS As indicated hereinabove, the mostprecise and preferred test for randomness will determine the actual orientation or direction in which the component filaments lie within the plane of the nonwoven sheet. The method described by I. W. S. Hearle and P. J. Stevenson in the Textile Research Journal, November 1963, pp. 879-888, determines the randomness of a nonwoven sheet. This method requires the counting and plotting of a large number of filaments in order to obtain accurate and reproducible results and is, therefore, very time-consuming. It is further noted that, whereas the actual visual measurement of filament orientation is readily applicable to nonwoven sheets in which the fibers are predominately straight, it is not as satisfactory for sheets in which the fibers are curved or crimped.

Instead of counting the number of filaments oriented at the various directions within the nonwoven sheet, it has now been found that a randomness measurement can be obtained by determining the total length of the filament segments that are oriented at the various directions throughout the sheet. In a random sheet, the total length of filament segments at any one orientation is the same as at any other orientation. This measurement has the advantage that it is universally applicable to straight, curved, or crimped fibers.

It has been found that the measurement of the length of filament segments at the various orientations can be made rapidly and accurately by an optical method. The method is based on the principle that only the incident light rays which are perpendicular to the fiber axis of a round fiber are reflected as light rays which are perpendicular to the fiber axis. Hence, by focusing a beam of parallel light rays on a nonwoven sheet at an incident angle less than e.g., 60, the light which is emitted perpendicular to the plane of the sheet comes only from filaments having an orientation within the plane of the sheet which is perpendicular to the incident light rays. By collecting and measuring photoelectrically the intensity of the light, the total length of the filament segments perpendicular to the light rays, therefore, parallel to each other, can be determined. By rotating the sheet, the parallel filament segments for any given direction can be measured and from this measurement, an analysis of the randomness can be made.

An apparatus suitable for this measurement is shown schematically in FIGURE 9 and will hereinafter be referred to as a randometer. A detailed description of the components, the method of operation, and the method for standardizing the characterizations are given below.

As shown in FIGURE 9, the apparatus has a revolving stage 46 on which the sample 47 to be examined is placed. Stage 46 is modified by gear 48 which has half the teeth removed so that when driven by synchronous motor 49, it rotates only Stage 46 rotates at 4 rpm, thus the time for rotation of the sample through 180 is 2 minutes. Lamp 50 is located directly over the sample and in line with magnifying lens system 51. Lamp 50 is a 6-volt lamp and its intensity is controlled through 6-volt transformer 52 and variable-voltage transformer 53. The light from 50 is focused by lens 51 onto the bottom of the sample, and when projected through objective lens 54, eyepiece 55 and reflected from mirror 56, gives a shadow of the sample on ground-glass screen 57 at a magnification of 36X. Screen 57 is circular and has a diameter of 6.9 inches.

A second lamp 58 is mounted in a housing with projection lens 59 to focus the light on the sample at an angle of 60. Lamp 58 is a 25-watt, concentrated arc lamp receiving its power from power supply 61 which is modified to eliminate the AC. ripple. The filaments or segments of filaments which are perpendicular to the light from lamp 58 reflect the light into the magnifying lens and mirror system to screen 57 for measurement. Optical slit 62 is located between the objective lens 54 and stage 46 and serves to control the limits of the light reflected from the sample. The slit is in. x in. and is mounted with its long axis parallel to an imaginary line which is perpendicular to the light from lamp 58 and within the plane of the sample' The light from the screen is focused by Fresnel lens 63 onto photomultiplier tube 64 RCA type 1P21) having a 2500-volt DC. power supply 65. The screen, Fresnel lens, and photomultiplier tube are contained in a single light-tight unit, which can, however, be opened for visual observation of the screen. The output from the photomultiplier tube is fed into a microampere recorder 66 having a chart speed of 8 in./min. and a chart 9.5 in. Wide. The chart records the light reflected from the parallel filaments at each direction as the sample is rotated through 180. The sensitivity of recorder 66 should be adjusted so that a current of 6 microamperes gives 100% pen deflection.

A two-way switch 67 is in the line from the photomultiplier tube to the recorder so that the signal can b measured on a sensitive microampere meter 68, if desired. This meter can also be used in conjunction with a 6-volt lamp of fixed intensity to measure the fiber density of the sample so that, if desirable, all samples can be compared on the same basis.

Samples of the nonwoven sheet to be examined are preferably unbonded and should permit clear viewing on the randometer of all the filaments through the thickness of the samples. A preferred basis weight range for sheets of 3 denier filaments is 0.75-l.5 oz./yd. Samples in excess of 1.5 oz./yd. should be delaminated to fall within the range stated, but care should be exercised to avoid the introduction of directionality due to the delamination. The delaminated specimen should be representative of the total thickness. The sample is placed between two microscope slides which are then taped together. The slide is placed on the revolving stage so that the light from lamp 58 shows on the sample. The background lamp 50 is then turned on and the filaments are focused as sharply as possible by moving revolving stage 46 up or down, while they are viewed on the screen. Lamp 50 is then turned off. Stage 46, lamp 58 and projection lens 59 are enclosed in a light tight unit. The voltage of power supply 65 is adjusted to give about in. pen deflection and the intensity of the reflected light is recorded on the microampere recorder chart as the sample is rotated through 180.

The heights of the intensity-orientation curve so obtained are measured in inches from the zero line of the chart at 80 equally spaced orientations and the arithmetic mean of these heights is determined. To standardize the randometer characterization, each of the 80 readings is multiplied by the factor Arithmetic mean to shift the curve to a standard mean (5 in.). The standard deviation of these corrected readings from this standard mean is then calculated. A perfectly random sheet would have a standard deviation of zero when the reflected light is measured at all orientations. As used herein, a random sheet is defined as one having a standard deviation of 0.6 in. or less, when determined by the above-described method. To improve the precision of the measurement, several samples selected from throughout the sheet may be examined and the results averaged. The presence of filament bundles in the nonwoven sheet can unduly affect the randomness values and therefore the values lose their significance with sheets having a CVfs above The following examples are illustrative of the invention.

Example I Using an apparatus assembly essentially as shown in FIGURE 1A, omitting idler roll 3, poly(hexamethylene adipamide) (39 relative viscosity) is spun through a 34- hole spinneret (each hole 0.009 inch in diameter) into filaments at a rate of 16 grams total polymer per minute, at a temperature of 290 C. The filaments are spun into a quiescent atmosphere at ambient temperature (25 C.) and relative humidity (70%). Downstream (ca. 30 inches) past the point of solidification and about 6 inches laterally from the normal filament line, a pneumatic jet (see FIGURE 3) of the following dimensions is placed:

inlet diameter, inch filament passageway diameter, 7 inch inlet cut-downto minimum diameter occurs over filament passageway length, 15 /2 inches angle of air entry (below inlet), ca. 15 degrees.

inch The jet, which is grounded, has inlet section or throat 7 composed of aluminum; the body of the jet is composed of brass. The filaments make triboelectric contact with the throat of the jet. The receiver is a 12 in. x 12 in. aluminum plate which is manually manipulated (hence grounded). Filaments are collected into hand sheets by interposing the receiver into the filament line and rotating the same until a sheet of the desired thickness and configuration is obtained. The results of several such runs are summarized in Table I.

TABLE I Filament Run A Pressure (P), p.s.1.g.

Denier TIE 1 Mi 2 l Tenacity (T), grams per denier/Elongation (E), percent. 2 Mi equals initial tensile modulus, g.p.d.

In all runs, process operability was very good, uniform sheets with good filament separation being produced. Similar sheets are obtained at good levels of operability when the polymer used in the above runs is polycaproamide.

Example II Sheets are prepared from poly(ethylene terephthalate) using the apparatus shown in FIGURE 4. Referring to that drawing, filaments l are spun from spinneret 2 and pass in the manner shown over the bar guides 20, 21 and 22, thence to the pneumatic jet supplied with air under pressure through inlet 6. The filament passageway extension 19 is flared outwardly (6) at the terminus 23. The charged filaments 9 which separate on exiting the extension of the jet, are collected on an aluminum plate receiver 11. The various components downstream from 13 spinneret 2 are grounded through leads 12. The pertinent distances along the filament line are as follows:

a=17 inches b 19 inches o=22.5 inches 1:25.5 inches e=ca. 4 inches 1: 48 inches g=7.5 inches h: 12 inches.

The filaments are quenched with air, applied 6 inches below the spinneret face. The guide bars 20, 21 and 22 are 1 in. x 1 in. with rounded edges and are composed of chromic oxide. Guide bar 21, i.e., the functional surface thereof, is offset from the filament line by 2.5 in. Pneumatic jet is shown in greater detail in FIGURE 5. The important dimensions of the jet are:

inlet diameter, ca. inch filament passageway diameter, 0.05 inch inlet angle, 60

angle of air entry, 5

entry 1% inches belowinlet.

The entire jet assembly is fabricated from brass.

In operation, poly(ethylene terephthalate) (34 relative viscosity) is spun through a 30-hole spinneret at a rate of grams (total) polymer per minute. Each spinneret hole is 0.007 inch in diameter. The spinning temperature, measured at the spinneret, is 287 C. The following results are obtained:

TABLE II Filament Properties Air Pressure Run (P), p.s.i.g.

Tenacity, Elong, M1, g.p.d. Denier g.p.d. percent When each of the above runs is repeated except that atmospheric steam at about 150 C. is applied to the separated filaments downstream from the pneumatic jet, using a foraminous member disposed annularly with respect to the filaments, the filaments relax up to 20% or more with concomitant development of crimp. Upon later hot calendering, the filaments in the sheet elongate spontaneously, thereby further contributing to the crimp level in the individual filaments and hence to the properties of the sheet.

When each of the above runs is repeated except that the filaments are collected in C. water, the filaments again relax, leading to the development of crimp up to levels of 50 or more crimps per inch (based on in situ examination). The filaments also spontaneously extend upon subsequent treatment at elevated temperatures. The filaments also may be caused to relax by employing a heated gas in the pneumatic jet or in a relaxing chamber downstream from the jet.

Examples III-VII In these five examples, nonwoven webs of continuous filament polyester fibers were prepared under varying conditions of web-deposition. Process variables were controlled to give sheets with different degrees of filament bunching, as evidenced by bunching coefi'icients ranging from high (0.83) to low (0.57) and CV of 86 to 122%. Insofar as possible, other variables were eliminated.

After the webs were prepared, characterization measurements of CVf and bunching coefficient were made. The webs were then bonded by application of a copolyester binder solution, and physical properties of the bonded sheets were measured.

Web preparation followed the same general procedure as that described in the earlier examples, except that corona charging was employed as shown in FIGURE 6. Molten poly(ethylene terephthalate) was spun through a a 17-hole spinneret at the rate of 0.88 g./hole/minute into a corona discharging area, through a jet and thence onto a receiver plate. Spinneret temperature was 288 C., and ambient air temperature was 25 C. The charging area was 72 inches below the spinneretface. The pneumatic jet was substantially the same as that used in the preceding example and was located 4 inches below the charging area. Air at 60 p.s.i. was used. The tailpipe or exit tube was 18 inches long. The receiver was a reciprocating table and was charged opposite to the charge on the fibers. Charging conditions are given in Table III. This table also shows results obtained with webs of Examples VIII and IX, made in the manner described below.

CONTINUOUS FILAMENT WEBS V p Web Properties:

Example N o.

a III IV V VI VII VIII IX Web Code A B G D E F G Corona Charge Volts, kv 30 28 23 14 i 11 None None Enriching Coefiicient 0.83 0.78 0. 73 0.63 0. 57 O. 47 0. 43 CVr. (Percent) 86 90 93 122 121 Filament Properties:

Denier 2. 4 2. 4 2. 4 2. 3 2. 4: 8. 7 .12. 9 Tenacity (g.p.d.) 2.9 2.9 3.0 2. 9 3. 0 1.2 1.0

longation (percent) 141 i 122 127 117 A 6% binder Tensile strength 3 Elongation (percent)- 13 Percent Binder Tensile strength 3 i Elongatiou(percent) 1 Webs similar t spectively.

2 Binder applied 3 Lb./in.//oz./yd

0 Examples VIII and IX were found to have CV of and 186%, re-

as a 25% solution in methylene chloride.

Examples VIII and IX The examples immediately above are concerned with nonwoven webs prepared by electropneumatic spinning processes. The present examples concern similar studies on webs made by prior art processes.

Web F was deposited by passing a strand of polyester filaments through an air jet and deflecting the fibers onto a collecting table, employing an angularly disposed deflector plate. No electrostatic charge was given to the fibers. Web G was deposited directly from an air jet onto the collecting plate without charging Table III shows the characterization and testing results of the sheets. FIG- URES 11C and 11D are photographs of the webs, G and F, respectively.

After the representative webs were prepared, Ibunching coefiicients were measured. The sheets were bonded by the application of a copolymer of poly(ethylene terephthalate) and poly(ethylene sebacate) (55/45 mole ratio) as binder. The binder was applied by dipping the web into the binder solution, letting the excess binder drip off, and air drying. Physical properties were then measured using an electronic tensile testing machine (Instron ieiter). Results of the measurements are given in Table The results of Table III are, of course, of the highest significance. Webs A through C were produced under preferred process conditions. They had CV of below 100% (bunching coeflicients in the range of 0.7 or higher). All of these webs had excellent physical properties when bonded.

In addition to the forgoing tests, evaluations were made of the optical uniformity of the webs before bonding by various techniques. In one method the webs were photographed by transmitted light, and also densitometer traces of the webs were made. FIGS. 11A and 11B are reproductions of enlarged photographs of webs A and E. FIG- URES A and 10B show densitometer traces of the same webs. The tremendous differences in appearance of these Webs show that degree of filament bunching is a significant measure of web uniformity. The densitometer traces serve to emphasize further what is readily apparent to the eye.

The densitometer traces referred to above were obtained using a Leeds and Northrup No. 6700P.I. Recording Microphotometer. The nonwoven web was mounted between glass plates to constitute the specimen. A record was obtained of the light transmission in several transverses across the web. The figures shown are representative traces replotted to show the light transmission on a linear rather than on a logarithmic scale.

Another method for evaluation of nonwoven webs for optical uniformity yields numerical values thus permitting a more precise comparison among various webs. In this method, an instrument consisting of a light source, sample mount, optical system for focusing the sample image on the aperture of a photo cell, amplifier and recorder is used to measure the intensity of light transmitted by the web. Opacity uniformity is measured by scanning, at a rate of 6 in./rnin., four 10 in. sides taken from a square sample of unbonded web, using a 0.4 in. diameter aperture, which, because of the optics of the system, is equivalent to a 0.1 in. diameter scan area on the web. The uniformity of transmitted light intensity is characterized by the coefficient of variation in transmitted light' intensity (CV at 50 equally spaced points on the recorder chart for each 10 in. length of sample scanned. The results obtained when webs A through E in Table III were evaluated by this method are summarized in" Table IV.

The randomness of the unbonded webs A through C in Table III was determined with the optical randometer and the results are given in Table IV.

TABLE IV Randomness Example Web Code Percent Percent Standard CVrB CVtn Deviation A 86 14 0.4 13 90 14 0.4 O 93 15 0.5 D 122 33 E 121 26 An excellent correlation is shown to exist between optical uniformity, as measured by CV and degree of filament bunching, as measured by CV Uniformity of appearance deteriorates rapidly at levels of CV; above Example X In this example a series of nonwoven webs is produced while maintaining all the operating conditions constant except for the level of electrostatic charge applied to the filaments. l

The apparatus assembly used in this example is shown schematically in FIGURE 7, wherein the filaments pass directly, as indicated by the dotted lines, from the spinnerets to the target bar of corona discharge device 30. Quench chimney 31 and guide roll 3 are not used in this apparatus embodiment. Poly(ethylene terephthalate) (27 relative viscosity) is spun through spinneret 2 having 17 holes (0.009 in. diameter x 0.012 in. long) at a total throughput of 18.4 g./ min. while an 80/20 copolymer of poly(ethylene terephthalate)/poly(ethylene isophthalate) (29 relative viscosity) is spun through spinneret 2a having 20 holes (0.009 in. diameter x 0.012 in. long) at a total throughput of 13.0 g./min. The spinneret temperatures are 271 C. and 263 C., respectively. Four of the copolyester filaments are used and the other 16 are spun' to waste. The filaments are quenched in the ambient air: at 27 C. before entrance into a draw jet 5 located about 65 inches below the spinnerets. The 21 filaments from the two spinnerets are combined into a filament bundle at the target bar of corona discharge device 30 which is located about 6 inches from the jet inlet.

The corona discharge device consists of a 4-point electrode positioned A; inch from grounded, 1% inch diameter, chrome-plated target bar rotating at 10 rpm. A negative voltage is applied to the corona points and is varied between 0 and 45 k.v. to vary the level of charge on the filaments. The filament bundle makes light contact with the target bar as it passes between the target bar and electrode. The level of charge is measured by collecting filaments exiting from the jet in a calibrated pail coulometer and is expressed as c.g.s. electrostatic units (e.s.u.) per square meter of filament surface.

The filaments are drawn and forwarded toward the laydown belt by a pneumatic jet 5 having a nozzle section as shown in FIGURE 8 and having the following dimensions:

In. Over-all jet length 24 Filament inlet diameter (16) 0.062 Filament inlet length (16) 0.55 Filament passageway (19) minimum diameter 0.093 Metering annulus 32:

Inner diameter 0.0750 Outer diameter 0.0930 Length 0.020

Air at a pressure of 51 p.s.i.g. is supplied to the jet, which under these conditions applies about 13.5 grams total tension to the filament bundle. Attached to the bottom of the jet is a relaxing chamber (9 /2 in. long; Vs in. inside diameter) which is provided with an annular nozzle for supplying additional air to the relaxing chamber. In this 1 7 example, hot air is not supplied to effect heat-relaxation of the filaments, but room temperature air is added at 4.8 s.c.f.m. to maintain nonturbulent flow in the relaxing chamber.

The jet-relaxing chamber unit is positioned at an angle of 82 with the plane of laydown belt 11 and is moved by traversing mechanism 33 so that it generated a portion of the surface of a cone, while the output from the relaxing chamber forms an are on the laydown belt having a chord length of 36 inches. The traverse speed is 30 passes (15 cycles) per minute. The distance from the exit of the relaxing chamber to the laydown belt is approximately 30 inches. The laydown belt moves at a speed of 12.5 inches per minute. Plate 34 located beneath the belt is charged at +35 kv., to pin the filaments to the laydown belt. The properties of the homopolymer fibers are: denier 2.5 dLp.f. (0.3 tex.); tenacity 3. 2 g.p.d.; percent shrinkage (when heated at water at 70 C. with no restraint), 35.9.

The random nonwoven web so prepared is consolidated by passing between a heated roll (80 C.) and an unheated roll under light pressure. Samples of the consolidated but unbonded webs are retained for measurement of CV and 0v, and other samples (8 in. x 8 in.)

of the consolidated web are bonded individually 'by heating them in a laboratory press at 220 C., 5,000 lbs. total pressure, for seconds between two polytetratluoroethylene-coated grooved plates. The plates have 24 grooves per inch and are placed with the grooves at right angles to each other. The total pressure area between the land areas of the two plates is 4%.

The tensile strengths and formation values of the bonded sheets are determined. Formation'value, designated FV, an alternative to CV vfor expressing degree ofuniformity of the nonwoven sheets, is measured with a Paper Formation Tester (M. N. Davis et a1, Technical Association of the Pulp and Paper lndustry, Technical Papers, Series 18, 386-391 (1935)). Asa standard for determination of FV, a suitable number of sheets of 1' oz./yd. onion-skin paper are combined to give a basis weight within 0.5 oz./yd.? of the samples to be examined.-

Table V summarizes the charging condition, levels of change obtained on the filaments and properties of the unbonded webs and bonded sheets.

lished by the tensile strength data. Wide fluctuation in uniformity and unsatisfactory product appearance are obtained with webs having a OV greater than 100%.

- Data on randomness of the vention meet the webs.

previously defined limit for random Example XI The data in Example X, and also in preceding Examples 111 through VH, were obtained on webs prepared with filaments which shrink during the bonding step. For comparison a series of webs is prepared with spontaneously elongatable poly(ethylene terephthalate) filaments and cospun binder filaments of an 80/ 20 copolymer of poly(eth- TABLE VI Sample Percent CV Tensile Strength lb./in.//oz./yd.

These data confirm the importance of having a high level of uniform filament separation (CV l00%) to obtain high strength levels with a given fiber tenacity.

Example XII The suitability of nonwoven sheet samples A through K in Example X for use in window-shade cloth is determined by making pinhole counts. These counts are made on 3 l-in. square samples of each sheet. The sheets, which have constant filament cross-section and denier, are chosen to have basis weights of 4.5 $0.25 oz./yd. An image of the TABLE V Electrostatic charge Tensile Randomness, Sample Percent Percent FV Strength, Standard Voltage Charge 011 CV tli lb./in.//oz./ycl. Deviation Applied Filaments (in.)

(kv.) (esu/mfl) FIGURE 12 is a graph of the tensile strength and CV data in Table V. Since these data are for nonwoven webs having the same filament strengths, the data are highly significant and the graph shows clearly that there is a rapid drop in tensile strength at a OV above 100%. The data in Table V also indicate a sign ficant and rapid deterioration of uniformity of appearance, as measured either by CV or formation value, at values of CVf greater than 100%, the same critical level as that establ-in. square sample is projected onto a screen at a linear magnification of 7 with a 35-min. projector. The total number of pinholes (bright spots of light) is then counted. An alternative procedure is to project an image of a l-in. square of sample onto photographic paper through an enlarger (7 x) to obtain a permanent record of the sample. Pinholes lead to blackening of the paper and are counted directly using a Zeiss particle size counter. The data obtained are summarized in Table VII.

nonwoven webs .are also int cluded in Table V and indicate that the webs of this in-' Below a CV; of 100%, the number of pinholes is relatively small and the sheets are useful as shade-cloth materials. Above a CV of 100%, the number of pinholes increases three to five-fold and no reasonable amount of masking with opaque coatings will produce a useful shade cloth.

Example XIII The abrasion resistance of bonded nonwoven sheets from Example X is determined using the C.S.I.A. abrader. The conditions of this test are as follows: 1 in. x 2 in. sample size; abradant, load, 5 lb./in.; 2 cycles/minute. The results are summarized in Table VIII.

TABLE III Sample Percent CV Cycles to Minimum Cycles Failure 1 to Failure 1 Average of 8 samples.

The data indicate the poorer abrasion resistance of the nonuniform sheets. The data on minimum cycles to failure are included to point out that certain areas of the nonuniform sheets fail quickly and result in failure for the entire fabric.

Example XIV Bonded nonwoven sheets of continuous poly(ethylene terephthalate) filaments, having diflferent degrees of uniformity of filament separation because of bunches of filaments in the structure, are imbedded in rubber and then evaluated in the standard air-wick test for acceptability as chafer materials in tubeless tires. The samples for evaluation are prepared by imbedding 1 in. x 3 in. pieces of fabric in rubber by a molding operation. The molded test sample is formed so that fabric ends extend. from two edges of the sample. The sample is then mounted in a pressure apparatus which exposes one edge of the sample to pressure. Leaks are detected by coating the other edge with a detergent solution and looking for air bubbles. Three samples from each nonwoven sheet are tested with the following results:

Sheet Percent CF18 Results No failures at 100 p.s.i. One failure after 30 min. at 100 p.s.i. One failure after min. at 100 p.s.i.

Example XV for tenting materials by coating with 68% by weight of Zinc oxide 5 Rutile titanium dioxide 10 Phthalocyanine green pigment 3 The coating is applied from a xylene medium at 20% solids. The coated sheets are evaluated for water repellency by a rain-impact test as follows: The sample (6" x 12 or larger) to be tested is placed over a funnel (5" x 5") shaped like a roofless house and having a ridge pole connecting symmetrically located apexes on 2 opposing sides. The apexes are 1% in. higher than the top edges of the other 2 sides. The sample is held in place by 2 clamps (weight 4 lbs. each) attached to the narrow ends of the sample. In order to prevent wicking of water /2 in.-wide vapor-impermeable tape is placed on the sample where it contacts the ridge pole and the edge of the funnel. Water is allowed to fall as drops on the mounted sample from a 5" x 5" tray positioned 60 in. above the sample. The tray has holes positioned in a rectangular arrangement on about /2 in. centers. The total rate of flow of the water is 1.5 gal. per min. The water leaking through the sample into the funnel in 30 minutes is measured. The results are summarized below:

These data indicate the desirability of having uniform filament separation (CV Higher coating weights are required to obtain acceptable waterproofing when nonuniform sheets are used.

Example X V1 The apparatus of Example 11 is employed in the preparation of sheets composed of polypropylene filaments. The pertinent distances are the same except for the following (see FIGURE 4):

a=18 inches 11:22 inches c=30 inches d=38 inches Guide bar 21 is offset from the filament line by 2 in. Polypropylene (10 melt-index) is spun at a rate of 6 grams per minute through a 30-hole spinneret, each hole being 0.009 inch in diameter. The temperature at the spinneret is C. Uniform sheets are obtained. Using 19 p.s.i.g. air, the following properties are obtained in the individual filaments, as spun: tenacity, 2.35 g.p.d.; elongation, 369%; modulus, 17.9 g.p.d.; denier, 1.51.

Example XVII Following the general teaching of Example XVI, sheets were prepared of continuous filament, predominantly isotactic polypropylene. Triboelectric charging was accomplished with 3 brass bars. Spinning conditions were adjusted to obtain high-tenacity filaments. A 30-hole spinneret with holes 0.015 inch in diameter was used to spin polymer having a melt index of 12.4. A two-stage mechanical drawing process was used. Other spinning variables are shown in Table IX below. After the webs were deposited, they were bonded by the application of 21- 24% by weight of polyvinyl chloride in tetrahydrofuran solution. Fiber and fabric properties for two samples made as indicated are shown in Table IX.

TABLE IX Fiber Properties Fabric Properties Polymer Draw Tensile Strength Web throughput Ratio (g./hole/min.)

Den T (g.p.d.) E. (percent) Mi lb./in./oz./yd. E. (percent) XVII-1 0.1 5.5x 1. 09 4. 9 72 25 21 46 XVII-2 0. 16 10.5X 1. 65 7. 8 26 47 33 26 Example XVIII The following example illustrates co-spinn-ing of poly- (rhexamethylene adipamide) (39 relative viscosity) and a 10% (weight) polycaproamide copolymer (relative viscosity 45) thereof. The 66-nylon is spun from a 34- hole spinneret (0.009 inch hole diameter) at 16 total grams per minute at 290 C. The 66/6-nylon copolymer is spun from a 20-hole spinneret (0.009 inch hole) at 255 C. and the output from 2 holes (1.78 grams per minute) is combined with the 34 filaments of 66-nylon. The two spinnerets are located on 5.5 inch centers. The freshly spun filaments are passed over a grounded, polished aluminum bar located 40 inches below, parallel to and offset by 6 inches from the centerline of the spinnerets. A pneumatic jet as shown in FIGURE 3 is located 1 inch below the point where the filaments contact the bar. Air at p.s.i.g. is supplied to the jet. The receiver, a 42 in. x 42 in. grounded aluminum plate, is located inches below the pneumatic jet. The receiver is traversed at a speed of 280 inches per minute below the jet and is further traversed at a speed of 28 inches per minute in a direction perpendicular to the primary traverse. Collecting in this manner for about 8.5 minutes yields a uniform sheet having a 4-ounce per square yard basis weight. The spinning speed during this run, based on polymer throughput and final filament denier, is 2900 yards per minute. Typical properties of 6'6-nylon filaments prepared by this procedure are: 'T/E=3.5/ 165; Mi=7.5; denier per filament, 1.60.

During the process described, the filaments are charged triboelectrically as they pass the aluminum bar; they are oriented upstream of the pneumatic jet, partly at the bar and partly by a spin-draw mechanism upstream from the bar. By virtue of the co-spun binder fiber, the resultant sheet can be rendered more stable by heating. For example, the sheet is pressed between SO-mesh stainless steel screens at 50 p.s.i. at 200 C. for 1 minute, to yield a tough, drapable fabric which exhibits enhanced resistance to delamination. A typical fabric prepared by this method has a tensile strength of 10 lbs./in./oz./yd.

Using an apparatus assembly similar to that described in Example II, poly(ethylene terephthalate) is spun through a 68-hole spinneret while a 20% (weight) poly- (ethylene isophthalate/terephthalate) copolymer is cospun through an adjacent 34-hole spinneret, incorporating at least two of the latter filaments in the resulting sheet. A uniform sheet is obtained which, by virtue of the cospun binder fiber). can be rendered more stable by subsequent heating. Taking in consideration the different compositions, the instant sheets are comparable to the ones obtained hereinabove as regards uniformity of laydown, freedom from filament aggregates, and the like; enhanced stability after heating, characteristic of sheets prepared by co-spinning, also is observed.

Example XIX The bundle of filaments is quenched in the ambient air before entrance to a draw jet, located about 70 in. below the spinneret. An operating pressure of 40 p.s.i. in the draw jet would provide a tension of about 3 grams on the threadline, as measured immediately above the jet. A negative corona is formed from a four point source 8 in. above the entrance to the draw jet, and above A in. from the bundle of filaments. A rotating target bar (10 r.p.m., 1% in. diam.) makes a slight contact with the filaments and aids in maintaining a uniform distance between individual filaments and the corona source. A negative voltage of 30-40 kv. (200-250 ,ua.) is applied to the corona points.

The charged poly(ethylene terephthalate) filaments are deposited on a reciprocating table (30 in. square) charged to positive polarity (20 kv.). The speed of the table movement is adjusted to obtain the proper basis weight and satisfactory uniformity. Under the table speed conditions of 29 in./min. in one direction and 580 in./min. in the other direction, the charged fiber is deposited as a web at a rate of 0.8 oz./yd. per minute. The filament properties are:

Denier d.p.f 2.3 Tenacity g.p.d 2.9 Elongation 183 Mi g.p.d 172 Example XX This example illustrates the production of a typical elastomeric polypropylene web. Polypropylene flake (Profax) at an MI of 10 is screw melted at a. maximum temperature of 290 C. andmetered at a. 12 g./min. rate through a A in. layer sand filter bed and a 2 in. spinneret having 20 capillaries (0.015 in. diaml x 0.020 in. long). The packblock is held at 275 C. and the spinneret ternperature is controlled at 260 C. I

The bundle of fibers is quenched radially in a 6 in. long quench chimney using 40 c.f.m. air at room temperature. The top of the quench chimney butts against the bottom of the spinning pack to minimize the effect of air flow on the spinneret temperature.

A draw jet operating at 25 p.s.i. provides a tension of about 3 grams on the threadline, measured immediately above the jet. Distance from spinneret to jet entry is 72 in. A negative corona is formed from a four point source at a distance of A; in. from a 1 /4 in. OD. bar rotating at 10 r.p.m. The threadline makes light contact with the target bar, the centerline of which is 8 in. above the entrance to the draw jet. A negative voltage of 20-25 k.v. (-150,:ra.) is applied to the corona points.

The elastomeric, charged fibers are deposited on a grounded 47 in. square table which reciprocates in two directions to form a web. Table motion is adjusted to obtain proper web weight and satisfactory web uniformity. Several layers are made for each. sheet. For the conditions 23 above, table speed is 26 in./min. in one direction and 570 in./min. in the other direction, and each layer is 0.5 oz./yd.

Typical fiber properties are as follows:

Denier d.p.f 2.5 Tenacity g.p.d 2.0 Elongation percent 300 Mi g.p.d.. 14

The web formed in this manner is coherent and strong, even without bonding. The appearance of the web is uniform. The bunching coefiicient of the web is 0.75.

Example XXI The non-woven Webs of this invention, described in examples above, were found to offer advantages as bases for water-proofed materials. Several samples of such fabrics were waterproofed with waxes, wax-resin combinations and resins. In comparison with similar fabrics prepared from woven cotton base material, the novel coated fabrics were found to retain their water-repellency much longer when subjected to scrubbing and flexing action.

The experimental fabrics were similar to those described in Example XIX, except that several different basis weights were used. Wax coatings were applied using commercial wax-solutions and wax-vinyl resin solutions employed as water-proofing compounds. Commerciallycoated fabrics were purchased and tested for comparison purposes. Resin coatings employed included both vinyl and chloro-sulfonated polyethylene resins.

Table X lists several experimental and control materials, which were prepared or purchased as indicated. Samples of such material were submitted to the indicated number of scrub/flex cycles using a mechanical flexor and were then tested using an AATCC Hydrostatic Pressure Tester.

As the table shows, improvements over comparable cotton fabrics ranged from 30:1 to 300: 1.

The laminated structure, due to the continuous nature of the reinforcing fiber elements, was observed to have greater strength and impact properties than similar staplereinforced materials. The structure was heat-scalable with no loss in properties at the seal.

Example XXIII Other laminated combinations are possible using the nonwoven webs of the present invention as well. A web of the type shown in Example XX, but containing highly oriented polypropylene material in continuous filament form, was laminated to a self-supporting film of oriented poly-propylene. First the fiber web was deposited, consolidated and thermally self-bonded. The oriented polypropylene film, of the type known in the art, was coated with a low-melting polyethylene adhesive. Then the two components were laminated with the application of heat and pressure to activate the adhesive. The result was a high level of lamination of web to film with a moderate level of fiber-to-fiber bonding. The resulting structure was highly suited to use as an improved industrial film suitable for protective coverings. Equally well, the structure was suited for use as a material for shipping bags. The presence of the film gave a vapor-impermeable barrier while the fiber elements provided high tear resistance and tensile strength.

In a modification of the practice of this example, a portion of the same self-bonded web was melt-coated with an unoriented film of polypropylene applied to one side.

Example XXIV This example shows the preparation of nonwoven webs of polypropylene and the lamination of such webs to give a highly resilient semi-rigid sheet structure.

Stereo-regular polypropylene having a Melt Index of 12.4 was spun into a web following the general procedure of Examples III through VII. In the present example the TABLE X.SCRUB/FLEX RESISTANCE OF WATERPROOFING ON COTTON AND ON CONTINUOUS FILA- MENT NONWOVEN FABRICS Waterproofing Hydrostatic Pressure, Cm. Gray Scrub Repelleney Item Fabric Weight, Flex, Retained,

oz./yd. Cycles Before After percent Compound Operation Scrub] Semb/ Flex Flex Woven Cotton Commercial 10 78 13 16. 7 d do 10 68 14 20.6 d0 10 100 25 25.0 Laboratory 3, 000 48 23 48. 0 do 10 51 13 26.0 100 10 38. 0 100 35 18 52. 0 3, 000 48 26 55. 0 3, 000 31 20 64. 5 3, 000 22. 5 18 80. 0 20 54 17 31. 5 20 67 18 26. 9 1, 200 43 24. 5 57. 0 1, 300 25 17.5 70. 0 5 26. 5 14. 5 57. 0 5 29. 0 l5. 5 53. 5 150 28 10 35. 8

1 Continuous filament nonwoven. Chlorosulfonated polyethylene.

Example XXII Continuous filament nonwoven sheets were prepared according to the teachings of Example 11. Webs having a basis weight of 1.0 and 2.0 oz./yd. were prepared. The filaments were all of poly(ethylene terephthalate) and no bonding filaments were included.

After sheet formation, the web structures were individually laminated with polyethylene films by a simple hot pressing procedure. A temperature of 195 C. was used to effect bonding, and a pressure of 125 p.s.i. was employed. The nonwoven web was imbedded in the thermoplastic film which thus acted as a binder for the web.

tray having an area of 2 sq. ft. The web density was 2 oz./yd. A number of Webs were collected in this way and each web was consolidated by pressing between plates at 115 C. at a pressure of tons/ft. for 30 seconds.

26 as follows: isotactic polypropylene (melt flow rate MFR 12, by method of ASTM1238 at 230 C. with a loading of 2.16 kg.) is spun from each of two spinnerets. One spinneret has 30 spinning orifices each 0.015 in. in diam- Six of the consolidated webs were plied together to 5 eter while the other has 5 orifices each 0.015 in. in digive a composite laminate weighing 12 oz./yd. The comameter. The extrusion rate from the latter is 3 g./min. posite web was needle punched on a needle loom at a while polymer is extruded from the 30-hole spinneret at density of 740 needles/fe the machine being run at 85 18 g./min. The temperature of the 30-hole spinneret is strokes/min. The web was run through the loom at a 256 C. and that of the 5-hole spinneret, 221 C. speed of 14 ft./second. The filaments from the 30-hole spinneret are led to Following the same general procedure described above, a heated feed roll operating with a surface temperature a number of these laminated resilient structures is made of 118 C., and advanced by means of an idler roll in varying basis weights. The resulting fabrics are canted with respect to the heated roll. A total of 5 wraps described in Table XI. The resilience and indentation is used on the heated feed roll, which is operated with resistance of the sheets are given as well. a surface speed of 238 yd./rnin. From the heated feed Because of their excellent response to physical deformaroll the filaments are then passed 5 wraps around an tion, these sheets olfer advantages for use as floor tiles, idler roll/draw roll system operating cold with a surface stair-step coverings, rug underlay material, counter-top speed of 842 yd./min. These filaments are drawn 3.54 coverings, resilient game-table surfaces, and similar appliare 7.75 denier (0.86 tex.) per filament and have a cations. In particular, the high resistance to permanent tenacity of 3.76 g.p.d. indentation and the superior resilience indicate excellent The filaments issuing from the 5-hole spinneret are behavior as floor tiling materials. I led to a heated roll operating with a surface temperature TABLE XI Indentation Resistance (mils residual set) Q Thickness Basis Thickness, Resilience After 10 Weight, mils 200 600 3,000 Thousand onlyd. p.s.i., p.s.i., p.s.i., Impacts of 24 hr. 1hr. 1hr. Percent Percent lit-lb.

Compres- Work sion Recovery Example XXV of 95 C. and a surface speed of 667 yd./min. After being in contact wtih the heated roll for 180 the fila- A web of poly(ethylene terephthalate) fibers and co- I tion escri e in t e secon par 0 xamp e Spinning conditions were the same as those described in 3:; 22 25221 gg fg g 22 2 3 it igg ig ig Example XIX, except that the binder fibers were added filaments am 7 8 nieg 86 teX er filament and have to the bundle of polyester filaments upstream of the t 55 p t f I th t 0 Charging Stage. 45 a enaci y o g.p. e amen s mm c w Downstream of the drawing jet, the filaments were relaxed and shnmk in a continuous manner by running them through a chamber containing cocurrent-fiowing air at 550 C. The walls of the chamber were maintained at room temperature. The air-flow of the hot air was not greatly faster than the entering velocity of the filaments into the relaxing chamber, but substantially faster than the exit velocity of the filaments. During their exposure to the hot air, the filaments shrank continuously in the chamber, losing 25% or more of their original length by relaxation. This relaxation placed the polyester filaments in a state of spontaneous elongatability as already described. Following the relaxation-shrinkage step, the filaments were collected as described in Example XIX to obtain a uniform nonwoven sheet of polyester fibers and co-spun binder fibers.

The web was then placed between a -mesh wire screen on one side, and a canvas fabric on the other, and heated to 210 C. at 200 p.s.i. for one minute. The heating caused elongation of the polyester fibers with bonding and embossing taking place simultaneously. The fabric produced as described was a soft, flexible nonwoven textile-like material, suitable for the same uses as woven fabrics of similar basis weight. The highly crimped fibers rendered the final structure drapable, and gave it a pleasing handle.

Example XXVI A nonwoven web of 14% low-oriented and 86% highoriented crystalline polypropylene filaments is prepared splnnerets meet and are guided so that the low-oriented filaments are dispersed uniformly throughout the highoriented filaments.

The filaments are stripped from the draw rolls and forwarded by a pneumatic jet having a nozzle section as shown schematically in FIGURE 8 and having the following dimensions:

Inc-hes Over-all jet length 15 A Filament inlet diameter (16) 0.062

Filament inlet length (16) 0.55

Filament passageway (19) minimum diameter 0.093 Metering annulus (32) Inner diameter 0.0750

Outer diameter 0.0930

Length 0.020

The jet is supplied with air at p.s.i.g. and applies a tension of about 36 grams on the filament bundle. The entrance to the jet is 110 inches from the draw roll.

Between the draw roll and the jet and 7 /2 inches from the latter, the filament bundle is exposed to a corona discharge device to impart an electrostatic charge to the fibers. The corona discharge device consists of a 4-point electrode positioned inch from a grounded, 1% inch diameter, chrome-plated target bar rotating at 10 rpm. A negative voltage of 23 kv. microamperes) is applied to the corona points. The filament bundle passes between the target bar and electrode and makes light contact with the target bar and is charged to a value of 74,100

75 6.S.H./LI11.2 of filament surface.

Non-Patent Citations
Reference
1 *None
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3449805 *3 Jan 196717 Jun 1969Enterprise Machine & DevApparatus for treating yarn
US3511905 *22 Aug 196712 May 1970Viscose Suisse SocProcess for the preparation of synthetic polymer filaments
US3614299 *17 Jul 197019 Oct 1971Exxon Research Engineering CoLow thermal conductivity cable core wrap
US3620797 *14 Jan 196916 Nov 1971Dhj Ind IncImpregnation of a nonwoven fabric
US3621110 *1 Apr 196916 Nov 1971Gen Cable CorpField impregnated extra high voltage cable system
US3630818 *22 Jul 196928 Dec 1971Monsanto CoLightweight nonwoven fabric of increased opacity
US3734803 *28 Sep 197122 May 1973Allied ChemApparatus for splaying and depositing nonwoven filamentary structures
US3770562 *9 Sep 19716 Nov 1973Kendall & CoComposite nonwoven fabrics
US3772578 *11 Sep 197213 Nov 1973Gen ElectricImpregnated capacitor
US3791900 *24 Jan 197212 Feb 1974Bayer AgProcess and apparatus for the production of hollow bodies from reaction resins, which are reinforced with fibres
US3855045 *21 Jan 197217 Dec 1974Kimberly Clark CoSelf-sized patterned bonded continuous filament web
US3870592 *27 Apr 197211 Mar 1975Kimberly Clark CoLaminates containing outer plies of continuous filament webs
US3900632 *3 Apr 197219 Aug 1975Kimberly Clark CoLaminate of tissue and random laid continuous filament web
US3904455 *10 Aug 19739 Sep 1975Goldman Daniel SLaminated fabric
US3929542 *3 Nov 197130 Dec 1975Basf Farben & FasernNon-woven webs of filaments of synthetic high molecular weight polymers and process for the manufacture thereof
US3949128 *22 Aug 19726 Apr 1976Kimberly-Clark CorporationProduct and process for producing a stretchable nonwoven material from a spot bonded continuous filament web
US3949130 *4 Jan 19746 Apr 1976Tuff Spun Products, Inc.Spun bonded fabric, and articles made therefrom
US3958055 *14 Aug 197418 May 1976Kimberly-Clark CorporationAdhesive bonding of isotropic fiber webs to form pattern bonded composites
US3991250 *10 Feb 19759 Nov 1976Lutravil Spinnvlies Gmbh & Co.Spunbonded fabrics of nylon-6 filaments
US4010306 *2 Jun 19751 Mar 1977E. I. Du Pont De Nemours And CompanyProcesses for impregnating and coating triaxial weave fabrics
US4025256 *21 Apr 197524 May 1977Contraves AgApparatus for the continuous fabrication of fiber reinforced plastic profile members
US4041203 *4 Oct 19769 Aug 1977Kimberly-Clark CorporationSterile wrap
US4096309 *12 Aug 197620 Jun 1978Champion International CorporationNon-woven sheet of polymeric material, metal foil, heat-sealable polyolefin
US4162344 *27 Jul 197824 Jul 1979American Manufacturing CompanyPorous resin impregnated stratified fiber flexible sheet backed mat and process of forming the same
US4189511 *7 Jan 197719 Feb 1980Celanese CorporationFilter
US4280860 *2 Nov 197928 Jul 1981Monsanto CompanyProcess for manufacturing nonwoven fabrics composed of crimped filaments
US4322027 *2 Oct 198030 Mar 1982Crown Zellerbach CorporationFilament draw nozzle
US4334340 *25 Jan 198015 Jun 1982Crown Zellerbach CorporationSystem and method for dispersing filaments
US4346504 *11 Jul 198031 Aug 1982Hoechst Fibers IndustriesYarn forwarding and drawing apparatus
US4351683 *23 Oct 197028 Sep 1982Minnesota Mining And Manufacturing CompanyBy extrusion and quenching of a thermoplastic material
US4392861 *14 Oct 198012 Jul 1983Johnson & Johnson Baby Products CompanyTwo-ply fibrous facing material
US4420526 *29 Sep 198113 Dec 1983Firma Carl FreudenbergSound absorbing irregularly shaped panel
US4439273 *11 Aug 198227 Mar 1984Albany International Corp.Wet press felt for papermaking machine
US4634621 *17 May 19846 Jan 1987The James River CorporationScrim reinforced, cloth-like composite laminate and a method of making
US4636418 *17 May 198413 Jan 1987James River CorporationPaper towles and tissues
US4637949 *8 Apr 198520 Jan 1987James River CorporationScrim reinforced, flat cloth-like composite laminate and a method of making
US4767825 *22 Dec 198630 Aug 1988Kimberly-Clark CorporationSuperabsorbent thermoplastic compositions and nonwoven webs prepared therefrom
US4806190 *16 Apr 198521 Feb 1989James River-Norwalk, Inc.Method and apparatus for forming reinforced dry laid fibrous webs
US4806598 *22 Dec 198621 Feb 1989Kimberly-Clark CorporationThermoplastic polymer blends and nonwoven webs prepared therefrom
US4818597 *27 Jan 19884 Apr 1989Kimberly-Clark CorporationHealth care laminate
US4820577 *22 Dec 198611 Apr 1989Kimberly-Clark CorporationMeltblown superabsorbent thermoplastic compositions
US4840832 *23 Jun 198720 Jun 1989Collins & Aikman CorporationMolded automobile headliner
US4847141 *26 Feb 198811 Jul 1989Kimberly-Clark CorporationSuperabsorbent thermoplastic compositions and nonwoven webs prepared therefrom
US4857251 *14 Apr 198815 Aug 1989Kimberly-Clark CorporationContaining polysiloxane additive
US4904514 *13 Sep 198827 Feb 1990Kimberly-Clark CorporationProtective covering for a mechanical linkage
US4906513 *3 Oct 19886 Mar 1990Kimberly-Clark CorporationNonwoven wiper laminate
US4963638 *23 Feb 198916 Oct 1990Kimberly-Clark CorporationSuperabsorbent thermoplastic compositions and nonwoven webs prepared therefrom
US4981747 *23 Sep 19881 Jan 1991Kimberly-Clark CorporationComposite elastic material including a reversibly necked material
US4996091 *2 Dec 198826 Feb 1991Acumeter Laboratories, Inc.Senitary napkins and diapers
US4997082 *16 May 19895 Mar 1991Kimberly-Clark CorporationHumidistat
US5055151 *9 Aug 19898 Oct 1991Greenstreak Plastic Products CompanyHeating, pressurization to bond thermoplastic filaments
US5114781 *15 Dec 198919 May 1992Kimberly-Clark CorporationDisposable products
US5116662 *15 Dec 198926 May 1992Kimberly-Clark CorporationMulti-direction stretch composite elastic material
US5144729 *8 Apr 19918 Sep 1992Fiberweb North America, Inc.Wiping fabric and method of manufacture
US5145727 *26 Nov 19908 Sep 1992Kimberly-Clark CorporationMultilayer nonwoven composite structure
US5149576 *26 Nov 199022 Sep 1992Kimberly-Clark CorporationMultilayer nonwoven laminiferous structure
US5178931 *17 Jun 199212 Jan 1993Kimberly-Clark CorporationThree-layer nonwoven laminiferous structure
US5178932 *17 Jun 199212 Jan 1993Kimberly-Clark CorporationMelt extruding continuous thermoplastic polyamide, polyolefin, polyester or polyetherester filaments; foraminous support; alcohol repellent microfibers; pattern bonding with heat, pressure; boundary between layers indistinct, fiber mixing
US5188885 *29 Mar 199023 Feb 1993Kimberly-Clark CorporationFirst layer of spun bonded thermoplastic filaments, second layer of discrete melt blown thermoplastic fibers
US5226992 *15 Dec 198913 Jul 1993Kimberly-Clark CorporationProcess for forming a composite elastic necked-bonded material
US5244525 *20 Jul 199214 Sep 1993Kimberly-Clark CorporationMethods for bonding, cutting and printing polymeric materials using xerographic printing of IR absorbing material
US5244723 *3 Jan 199214 Sep 1993Kimberly-Clark CorporationFilaments, tow, and webs formed by hydraulic spinning
US5244947 *31 Dec 199114 Sep 1993Kimberly-Clark CorporationStabilization of polyolefin nonwoven webs against actinic radiation
US5283023 *3 Jan 19921 Feb 1994Kimberly-Clark CorporationAdding polyethersiloxane copolymer
US5300167 *11 Jun 19935 Apr 1994Kimberly-ClarkMelting polyolefin with additive and a retardant coadditive; forming fibers, adjusting concentrations to give desired delay time
US5336545 *12 Jul 19939 Aug 1994Kimberly-Clark CorporationComposite elastic necked-bonded material
US5342335 *22 Dec 199330 Aug 1994Kimberly-Clark CorporationNonwoven web of poly(vinyl alcohol) fibers
US5344862 *25 Oct 19916 Sep 1994Kimberly-Clark CorporationThermoplastic compositions and nonwoven webs prepared therefrom
US5369858 *19 Aug 19926 Dec 1994Fiberweb North America, Inc.Process for forming apertured nonwoven fabric prepared from melt blown microfibers
US5382703 *6 Nov 199217 Jan 1995Kimberly-Clark CorporationElectron beam-graftable compound and product from its use
US5393831 *5 May 199328 Feb 1995Kimberly-Clark CorporationShelf stable nonwoven fabrics and films
US5397413 *10 Apr 199214 Mar 1995Fiberweb North America, Inc.Apparatus and method for producing a web of thermoplastic filaments
US5413655 *6 Apr 19949 May 1995Kimberly-Clark CorporationThermoplastic compositions and nonwoven webs prepared therefrom
US5413811 *18 Mar 19949 May 1995Kimberly-Clark CorporationChemical and mechanical softening process for nonwoven web
US5445785 *22 Dec 199329 Aug 1995Kimberly-Clark CorporationExtrusion; attenuation; drying; depositing randomly on moving foraminous surface; uniformity; free of shot; controlling turbulence
US5455074 *29 Dec 19923 Oct 1995Kimberly-Clark CorporationLaminating method and products made thereby
US5460884 *25 Aug 199424 Oct 1995Kimberly-Clark CorporationSoft and strong thermoplastic polymer fibers and nonwoven fabric made therefrom
US5482765 *5 Apr 19949 Jan 1996Kimberly-Clark CorporationSurgical garments
US5486166 *9 Feb 199523 Jan 1996Kimberly-Clark CorporationFibrous nonwoven web surge layer for personal care absorbent articles and the like
US5490846 *9 Feb 199513 Feb 1996Kimberly-Clark CorporationSurge management fibrous nonwoven web for personal care absorbent articles and the like
US5494855 *30 Nov 199427 Feb 1996Kimberly-Clark CorporationThermoplastic compositions and nonwoven webs prepared therefrom
US5498463 *21 Mar 199412 Mar 1996Kimberly-Clark CorporationPolyethylene meltblown fabric with barrier properties
US5500254 *21 Dec 199319 Mar 1996Kimberly-Clark CorporationApplying polyethersiloxane copolymer surfactant
US5512358 *22 Sep 199330 Apr 1996Kimberly-Clark CorporationMulti-component polymeric strands including a butene polymer and nonwoven fabric and articles made therewith
US5514470 *30 May 19957 May 1996Kimberly-Clark CorporationComposite elastic necked-bonded material
US5522810 *5 Jun 19954 Jun 1996Kimberly-Clark CorporationCompressively resistant and resilient fibrous nonwoven web
US5525415 *20 Mar 199511 Jun 1996Kimberly Clark CorporationUsed as diapers, feminine care products, incontinent care products, training pants and wipes
US5536555 *1 Feb 199516 Jul 1996Kimberly-Clark CorporationLiquid permeable, quilted film laminates
US5538019 *3 Nov 199323 Jul 1996Schweitzer-Mauduit International, Inc.Spunbond cigarette filter
US5540976 *11 Jan 199530 Jul 1996Kimberly-Clark CorporationNonwoven laminate with cross directional stretch
US5540984 *20 Mar 199530 Jul 1996Kimberly-Clark CorporationPolyethersiloxane surfactant; disposable products
US5549868 *21 Apr 199527 Aug 1996Kimberly-Clark CorporationMethod of sterilizing an article
US5567372 *26 May 199422 Oct 1996Kimberly-Clark CorporationMethod for preparing a nonwoven web containing antimicrobial siloxane quaternary ammonium salts
US5569732 *25 May 199529 Oct 1996Kimberly-Clark CorporationTrisiloxane
US5578369 *25 May 199526 Nov 1996Kimberly-Clark CorporationLaminating method and products made thereby
US5582632 *11 May 199410 Dec 1996Kimberly-Clark CorporationCorona-assisted electrostatic filtration apparatus and method
US5597647 *20 Apr 199528 Jan 1997Kimberly-Clark CorporationNonwoven protective laminate
US5605739 *21 Dec 199525 Feb 1997Kimberly-Clark CorporationSheath, core bicomponent filaments of a thermoplastic resin
US5607735 *22 Dec 19954 Mar 1997Kimberly-Clark CorporationHigh efficiency dust sock
US5607798 *17 May 19954 Mar 1997Kimberly-Clark CorporationSoft and strong thermoplastic polymer and nonwoven fabric laminates
US5618622 *30 Jun 19958 Apr 1997Kimberly-Clark CorporationAnionic carboxylic acid or sulfonic acid group-containing hydrocarbon polymer with chitosan polyelectrolyte coating
US5641822 *14 Apr 199524 Jun 1997Kimberly-Clark CorporationMelting mixture of thermoplastic polyolefin and ether/siloxane additive, extruding through die to form fibers, drawing, collecting on moving foraminous surface as web of entangled fibers which retains wettability over time
US5643240 *18 Jun 19961 Jul 1997Kimberly-Clark CorporationApertured film/nonwoven composite for personal care absorbent articles and the like
US5643653 *22 May 19951 Jul 1997Kimberly-Clark CorporationShaped nonwoven fabric
US5652051 *27 Feb 199529 Jul 1997Kimberly-Clark Worldwide, Inc.Nonwoven fabric from polymers containing particular types of copolymers and having an aesthetically pleasing hand
US5658268 *31 Oct 199519 Aug 1997Kimberly-Clark Worldwide, Inc.Enhanced wet signal response in absorbent articles
US5662978 *1 Sep 19952 Sep 1997Kimberly-Clark Worldwide, Inc.Protective cover fabric including nonwovens
US5667562 *19 Apr 199616 Sep 1997Kimberly-Clark Worldwide, Inc.Spunbond vacuum cleaner webs
US5667750 *14 Feb 199616 Sep 1997Kimberly-Clark CorporationProcess of making a nonwoven web
US5681646 *19 Apr 199628 Oct 1997Kimberly-Clark Worldwide, Inc.High strength spunbond fabric from high melt flow rate polymers
US5687916 *6 Nov 199518 Nov 1997Kimberly-Clark Worldwide, Inc.Method of nonwoven reclaim
US5688157 *8 Nov 199618 Nov 1997Kimberly-Clark Worldwide, Inc.Nonwoven fabric laminate with enhanced barrier properties
US5688465 *13 May 199618 Nov 1997Kimberly-Clark Worldwide, Inc.Method of corona treating a hydrophobic sheet material
US5695377 *29 Oct 19969 Dec 1997Kimberly-Clark Worldwide, Inc.Nonwoven fabrics having improved fiber twisting and crimping
US5695829 *25 Sep 19969 Dec 1997Kimberly-Clark Worldwide, Inc.Modified polymeric material having improved wettability
US5695849 *20 Feb 19969 Dec 1997Kimberly-Clark Worldwide Inc.Nonwoven web of fibers made from elastic polyolefin; diapers, personal care pads
US5696191 *31 May 19959 Dec 1997Kimberly-Clark Worldwide, Inc.Wettable nonwoven product; disposable products
US5698294 *11 Oct 199616 Dec 1997Kimberly-Clark Worldwide, Inc.Sterilization wrap material
US5698481 *24 Oct 199616 Dec 1997Kimberly-Clark Worldwide, Inc.One layer is of polyolefin film; medical garment
US5699791 *4 Jun 199623 Dec 1997Kimberley Clark CorporationUniversal fit face mask
US5700531 *17 Nov 199523 Dec 1997Kimberly-Clark Worldwide, Inc.Multilayer structure of fibrous sheets and films having good bonding strength
US5702377 *7 Mar 199530 Dec 1997Kimberly-Clark Worldwide, Inc.Absorbent diapers having a nonwoven fabric linings for more dryness comfort feel
US5705251 *28 Dec 19956 Jan 1998Kimberly-Clark Worldwide, Inc.Garment with liquid intrusion protection
US5707468 *22 Dec 199413 Jan 1998Kimberly-Clark Worldwide, Inc.Compaction-free method of increasing the integrity of a nonwoven web
US5707707 *1 Aug 199513 Jan 1998Kimberly-Clark Worldwide, Inc.Compressively resilient loop structure for hook and loop fastener systems
US5707735 *18 Mar 199613 Jan 1998Midkiff; David GrantMultilobal conjugate fibers and fabrics
US5709735 *20 Oct 199520 Jan 1998Kimberly-Clark Worldwide, Inc.High stiffness nonwoven filter medium
US5709921 *13 Nov 199520 Jan 1998Kimberly-Clark Worldwide, Inc.Personal care products
US5711994 *8 Dec 199527 Jan 1998Kimberly-Clark Worldwide, Inc.Treated nonwoven fabrics
US5714256 *27 Jan 19953 Feb 1998Kimberly-Clark Worldwide, Inc.A nonwoven web from thermoplastic resins containing a blend of syndiotactic polypropylene and isotactic polypropylene
US5714257 *18 Jan 19963 Feb 1998Kimberly Clark CoSilane modified elastomeric compositions and articles made therefrom
US5719219 *25 May 199617 Feb 1998Kimberly-Clark Worldwide, Inc.Mixing silane having unsaturated and hydrolytically reactive groups with and grafting onto melt extrudable thermoplastic polymer, extruding, fiberizing, forming web, exposing to moisture to cure
US5732454 *22 Aug 199631 Mar 1998Maschinenfabrik Rieter AgMethod and apparatus for stuffer box crimping synthetic filament threads
US5733603 *5 Jun 199631 Mar 1998Kimberly-Clark CorporationVinyl polymer for surface active agents, dissolving and immersion to coat a substrate, rinsing after removal from solutions
US5738745 *27 Nov 199514 Apr 1998Kimberly-Clark Worldwide, Inc.Method of improving the photostability of polypropylene compositions
US5741564 *22 Jun 199521 Apr 1998Kimberly-Clark Worldwide, Inc.Stretch-activated container
US5744548 *30 Oct 199628 Apr 1998Kimberly-Clark Worldwide, Inc.Blend containing polysiloxane
US5762734 *30 Aug 19969 Jun 1998Kimberly-Clark Worldwide, Inc.Process of making fibers
US5762857 *31 Jan 19979 Jun 1998Weng; JianMethod for producing nonwoven web using pulsed electrostatic charge
US5763041 *21 Dec 19959 Jun 1998Kimberly-Clark Worldwide, Inc.Laminate material
US5770531 *29 Apr 199623 Jun 1998Kimberly--Clark Worldwide, Inc.Mechanical and internal softening for nonwoven web
US5773120 *28 Feb 199730 Jun 1998Kimberly-Clark Worldwide, Inc.Loop material for hook-and-loop fastening system
US5777010 *23 Jul 19967 Jul 1998Kimberly-Clark Worldwide, Inc.Melt-extrudable compositions containing antimicrobial siloxane quaternary ammonium salts
US5780369 *30 Jun 199714 Jul 1998Kimberly-Clark Worldwide, Inc.Saturated cellulosic substrate
US5786412 *28 May 199628 Jul 1998Kimberly-Clark Worldwide, Inc.Process for producing a film using silane modified elastomeric compositions
US5789065 *11 Oct 19964 Aug 1998Kimberly-Clark Worldwide, Inc.Laminated fabric having cross-directional elasticity and method for producing same
US5798078 *11 Jul 199625 Aug 1998Kimberly-Clark Worldwide, Inc.Sulfonated polymers and method of sulfonating polymers
US5798167 *2 Aug 199425 Aug 1998Kimberly-Clark Worldwide, Inc.Garment of a durable nonwoven fabric
US5800866 *6 Dec 19961 Sep 1998Kimberly-Clark Worldwide, Inc.Method of preparing small particle dispersions
US5801106 *10 May 19961 Sep 1998Kimberly-Clark Worldwide, Inc.Polymeric strands with high surface area or altered surface properties
US5803106 *21 Dec 19958 Sep 1998Kimberly-Clark Worldwide, Inc.Ultrasonic apparatus and method for increasing the flow rate of a liquid through an orifice
US5804021 *10 May 19968 Sep 1998Kimberly-Clark Worldwide, Inc.Slit elastic fibrous nonwoven laminates and process for forming
US5806154 *24 May 199515 Sep 1998Springs Industries, Inc.Method of making textile laminate
US5807366 *18 Jun 199715 Sep 1998Milani; JohnAbsorbent article having a particle size gradient
US5810954 *20 Feb 199622 Sep 1998Kimberly-Clark Worldwide, Inc.Method of forming a fine fiber barrier fabric with improved drape and strength of making same
US5814570 *15 May 199629 Sep 1998Kimberly-Clark Worldwide, Inc.Electrostatically charged ethylene oxide sterilized web; protective clothing, etc. for surgery, sterile manufacturing
US5817584 *22 Dec 19956 Oct 1998Kimberly-Clark Worldwide, Inc.High efficiency breathing mask fabrics
US5820973 *22 Nov 199613 Oct 1998Kimberly-Clark Worldwide, Inc.Heterogeneous surge material for absorbent articles
US5821178 *6 Nov 199613 Oct 1998Kimberly-Clark Worldwide, Inc.Disposable protective clothing; improved particulate barrier properties with no increase in surface charge
US5822884 *11 Jul 199620 Oct 1998Kimberly-Clark Worldwide, Inc.Slip-resistant shoe cover
US5830810 *20 Feb 19973 Nov 1998Kimberly-Clark Worldwide, Inc.Plasma sterilizable charged fabric
US5834384 *28 Nov 199510 Nov 1998Kimberly-Clark Worldwide, Inc.Nonwoven webs with one or more surface treatments
US5837352 *12 Jun 199717 Nov 1998Kimberly-Clark Worldwide, Inc.Covering for absorbent article
US5839608 *30 Jan 199724 Nov 1998Kimberly-Clark Worldwide, Inc.Method of dispensing a liquid
US5843057 *25 Jun 19971 Dec 1998Kimberly-Clark Worldwide, Inc.Film-nonwoven laminate containing an adhesively-reinforced stretch-thinned film
US5843063 *22 Nov 19961 Dec 1998Kimberly-Clark Worldwide, Inc.Multifunctional absorbent material and products made therefrom
US5853628 *12 Sep 199629 Dec 1998Kimberly-Clark Worldwide, Inc.Method of forming nonwoven fabric having a pore size gradient
US5853635 *18 Jun 199729 Dec 1998Kimberly-Clark Worldwide, Inc.Method of making heteroconstituent and layered nonwoven materials
US5853641 *20 Apr 199829 Dec 1998Kimberly-Clark Worldwide, Inc.Method for preparing polyolefin fibers containing antimicrobial siloxane quarternary ammonium salts
US5853859 *7 Jul 199529 Dec 1998Kimberly-Clark Worldwide, Inc.Room temperature latex printing
US5853881 *11 Oct 199629 Dec 1998Kimberly-Clark Worldwide, Inc.Elastic laminates with improved hysteresis
US5853883 *20 Apr 199829 Dec 1998Kimberly-Clark Worldwide, Inc.Polyolefin fibers containing antimicrobial siloxane quaternary ammonium salts
US5854147 *20 Apr 199829 Dec 1998Kimberly-Clark Worldwide, Inc.Non-woven web containing antimicrobial siloxane quaternary ammonium salts
US5868153 *21 Dec 19959 Feb 1999Kimberly-Clark Worldwide, Inc.Ultrasonic liquid flow control apparatus and method
US5874160 *20 Dec 199623 Feb 1999Kimberly-Clark Worldwide, Inc.Cleaning implement formed from spunbond fiber webs; scrubber for cleaning skin
US5877099 *27 Jan 19972 Mar 1999Kimberly Clark CoFilter matrix
US5879343 *22 Nov 19969 Mar 1999Kimberly-Clark Worldwide, Inc.Highly efficient surge material for absorbent articles
US5882769 *10 Mar 199716 Mar 1999Kimberly-Clark Worldwide, Inc.Stretch-pillowed, bulked laminate
US5883026 *27 Feb 199716 Mar 1999Kimberly-Clark Worldwide, Inc.Face masks including a spunbonded/meltblown/spunbonded laminate
US5883231 *21 Aug 199716 Mar 1999Kimberly-Clark Worldwide, Inc.Artificial menses fluid
US5900306 *26 Jun 19974 May 1999Kimberly-Clark Worldwide, Inc.Thermally bonded mulitlayered; personal care products, e.g:diapers, training pants, absorbent underpants, adult incontinence product, and feminine hygiene product; heterophasic polymer
US5901706 *9 Jun 199711 May 1999Kimberly-Clark Worldwide, Inc.Absorbent surgical drape
US5907872 *8 Apr 19971 Jun 1999Kimberly-Clark Worldwide, Inc.Process for manufacturing sleeveless tops, shirts, or blouses
US5910224 *11 Sep 19978 Jun 1999Kimberly-Clark Worldwide, Inc.Method for forming an elastic necked-bonded material
US5913329 *19 Mar 199722 Jun 1999Kimberly-Clark Worldwide, Inc.High temperature, high speed rotary valve
US5916204 *26 Jan 199829 Jun 1999Kimberly-Clark Worldwide, Inc.Method of forming a particle size gradient in an absorbent article
US5916678 *16 Oct 199629 Jun 1999Kimberly-Clark Worldwide, Inc.Used to form fibrous nonwoven webs which can be used as components in such end-use products as medical and health care related items, wipes and personal care absorbent articles
US5919177 *28 Mar 19976 Jul 1999Kimberly-Clark Worldwide, Inc.Permeable fiber-like film coated nonwoven
US5925581 *15 Oct 199620 Jul 1999Spring Industries, Inc.Fiberfill web; bedding, construction materials; durability
US5925712 *20 Oct 199720 Jul 1999Kimberly-Clark Worldwide, Inc.Fusible printable coating for durable images
US5931823 *31 Mar 19973 Aug 1999Kimberly-Clark Worldwide, Inc.High permeability liner with improved intake and distribution
US5932299 *22 Apr 19973 Aug 1999Katoot; Mohammad W.Employing infrared radiation, microwave radiation or high voltage polymerization for modifying the surfaces of materials to impart desired characteristics thereto.
US5932495 *29 May 19983 Aug 1999Kimberly-Clark Worldwide, Inc.Enhanced odor absorption by natural and synthetic polymers
US5935512 *18 Dec 199710 Aug 1999Kimberly-Clark Worldwide, Inc.Nonwoven process and apparatus
US5935612 *27 Jun 199610 Aug 1999Kimberly-Clark Worldwide, Inc.Pneumatic chamber having grooved walls for producing uniform nonwoven fabrics
US5939341 *6 Aug 199717 Aug 1999Kimberly-Clark Worldwide, Inc.Web comprising thermoplastic polymer selected from the group consisting of polyolefins, polyesters, polyamides, and mixtures thereof, a hindered amine ultraviolet light stabilizer and a calcined mixed oxide
US5952251 *31 Dec 199614 Sep 1999Kimberly-Clark CorporationWet wipe sheets capable of dispersing in water to form pieces that are less than about 25 millimeters in diameter and are small enough to prevent problems in a sewage transport system
US5952252 *20 Feb 199614 Sep 1999Kimberly-Clark Worldwide, Inc.Barrier fabric laminate comprising intermediate layer comprised of at least one meltblown layer of first elastic fibers, outer spunbond layer of elastic fibers bonded to intermediate layer; personal care products
US5962149 *20 Oct 19975 Oct 1999Kimberly-Clark Worldwide, Inc.Fusible printable coating for durable images
US5964742 *15 Sep 199712 Oct 1999Kimberly-Clark Worldwide, Inc.Nonwoven bonding patterns producing fabrics with improved strength and abrasion resistance
US5964743 *27 Feb 199712 Oct 1999Kimberly-Clark Worldwide, Inc.Elastic absorbent material for personal care products
US5965468 *31 Oct 199712 Oct 1999Kimberly-Clark Worldwide, Inc.Direct formed, mixed fiber size nonwoven fabrics
US5994615 *16 Dec 199830 Nov 1999Kimberly-Clark Worldwide, Inc.Useful in personal care products such as disposable diapers, incontinence guards, child care training pants, or sanitary napkins.
US5998023 *9 Jan 19987 Dec 1999Kimberly-Clark Worldwide, Inc.Surface modification of hydrophobic polymer substrate
US5998308 *22 May 19967 Dec 1999Kimberly-Clark Worldwide, Inc.Nonwoven barrier and method of making the same
US6001460 *30 Dec 199614 Dec 1999Kimberly-Clark Worldwide, Inc.Elastic laminated fabric material and method of making same
US6013347 *16 Jul 199711 Jan 20003M Innovative Properties CompanyMethod of continuous tone imaging to provide an imaged high loft mat product
US6015764 *2 May 199718 Jan 2000Kimberly-Clark Worldwide, Inc.Microporous elastomeric film/nonwoven breathable laminate and method for making the same
US6017832 *19 Dec 199725 Jan 2000Kimberly-Clark Worldwide, Inc.Method and composition for treating substrates for wettability
US6019152 *29 Jul 19981 Feb 2000Kimberly-Clark Worldwide, Inc.Apparatus for heating nonwoven webs
US6020277 *10 May 19961 Feb 2000Kimberly-Clark CorporationMelt extrusion; applying ultrasonic energy
US6028016 *22 Jul 199722 Feb 2000Kimberly-Clark Worldwide, Inc.Coating fabric with low viscosity hydrophilic composition containing alkyl polyglycoside viscosity modifier
US6032342 *25 Apr 19977 Mar 2000Fukui PrefectureMulti-filament split-yarn sheet and method and device for the manufacture thereof
US6033739 *5 Apr 19997 Mar 2000Kimberly-Clark Worldwide, Inc.Fusible printing coating for durable images
US6034010 *24 Sep 19977 Mar 2000Kimberly-Clark Worldwide, Inc.Breathable; multilayer
US6036467 *25 Nov 199714 Mar 2000Kimberly-Clark Worldwide, Inc.Apparatus for ultrasonically assisted melt extrusion of fibers
US6037281 *27 Dec 199614 Mar 2000Kimberly-Clark Worldwide, Inc.A polyolefin polymer film laminated to nonwoven fabrics; use as sterilization wrap, surgical draping, surgical gowns, cover garments, protective clothing
US6040255 *25 Jun 199621 Mar 2000Kimberly-Clark Worldwide, Inc.Containing bismuth vanadate
US6046378 *12 Mar 19974 Apr 2000Kimberly-Clark Worldwide, Inc.Wettable article
US6053424 *21 Dec 199525 Apr 2000Kimberly-Clark Worldwide, Inc.Apparatus and method for ultrasonically producing a spray of liquid
US6060410 *22 Apr 19989 May 2000Gillberg-Laforce; Gunilla ElsaDiapers, sanitary napkins
US6060636 *1 Aug 19979 May 2000Kimberly-Clark Worldwide, Inc.Treatment of materials to improve handling of viscoelastic fluids
US6060638 *1 Nov 19969 May 2000Kimberly-Clark Worldwide, Inc.Matched permeability liner/absorbent structure system for absorbent articles and the like
US6066221 *17 Jun 199723 May 2000Kimberly-Clark Worldwide, Inc.Method of using zoned hot air knife
US6066286 *9 Jun 199823 May 2000Kimberly-Clark Worldwide, Inc.Exposing sulfur dioxide and oxygen to ultraviolet free radical producing energy and contacting the polymer with this product in a reduced pressure environment.
US6075179 *1 Oct 199613 Jun 2000Kimberly-Clark Worldwide, Inc.A thin liquid barrier comprising a core layer made from an extrudable thermoplastic polymer; personal care absorbent products, articles of clothing and health care related items such as surgical drapes and gowns
US6098557 *23 Jun 19998 Aug 2000Kimberly-Clark Worldwide, Inc.High speed method for producing pant-like garments
US6103647 *14 Mar 199615 Aug 2000Kimberly-Clark Worldwide, Inc.Nonwoven fabric laminate with good conformability
US6105578 *27 Feb 199722 Aug 2000Kimberly-Clark Worldwide, Inc.Equipment drape for use with an interventional magnetic resonance imaging device
US6110479 *23 Oct 199729 Aug 2000Kimberly-Clark Worldwide, Inc.Multilayer films as adsorbent
US6111163 *26 Jun 199729 Aug 2000Kimberly-Clark Worldwide, Inc.Breathable film comprising oriented microporous relaxed unbiased film layer comprising elastomer and filler having particle size that contributes to pore formation
US6114407 *5 Jun 19985 Sep 2000Kimberly-Clark Worldwide, Inc.Sulfonated polymers
US6117379 *29 Jul 199812 Sep 2000Kimberly-Clark Worldwide, Inc.Turbulence-inducing spaced bar arrangement is positioned in the quench gas stream on the side of a spinnerette used to extrude the filaments; controlled turbulence of quenching gas to increase heat transfer without breaking filaments
US6120888 *30 Jun 199719 Sep 2000Kimberly-Clark Worldwide, Inc.Ink jet printable, saturated hydroentangled cellulosic substrate
US6152904 *22 Nov 199628 Nov 2000Kimberly-Clark Worldwide, Inc.Absorbent articles with controllable fill patterns
US6156421 *10 Mar 19985 Dec 2000Kimberly-Clark Worldwide, Inc.Stretched-filled microporous films and methods of making the same
US6162535 *6 Dec 199619 Dec 2000Kimberly-Clark Worldwide, Inc.Ferroelectric fibers and applications therefor
US6164948 *8 May 199826 Dec 2000Kimberly-Clark Worldwide, Inc.Extrusion die system with removable insert
US617169519 May 19979 Jan 2001Kimberly-Clark Worldwide, Inc.Thin absorbent pads for food products
US617215312 Jun 19989 Jan 2001Montell North America Inc.Olefin polymer composition having low smoke generation and fiber, film and fabric prepared therefrom
US617227625 Mar 19989 Jan 2001Kimberly-Clark Worldwide, Inc.Stabilized absorbent material for improved distribution performance with visco-elastic fluids
US617695524 Nov 199923 Jan 2001Kimberly-Clark Worldwide, Inc.Method for heating nonwoven webs
US617760725 Jun 199923 Jan 2001Kimberly-Clark Worldwide, Inc.Highly breathable outer cover, yet reduced perceived dampness caused by evaporative cooling due to presence of a second (inner) nonwoven filament web having a mean denier higher than the filaments of the first to provide an air gap
US617993912 May 199730 Jan 2001Kimberly-Clark Worldwide, Inc.Methods of making stretched filled microporous films
US61907589 Oct 199820 Feb 2001Kimberly-Clark Worldwide, Inc.Nonwoven-film laminates
US61925218 Apr 199727 Feb 2001Kimberly-Clark Worldwide, Inc.Process for manufacturing shorts or trousers
US620388930 Jul 199820 Mar 2001Kimberly-Clark Worldwide, Inc.Nonwoven webs having zoned migration of internal additives
US620420821 Aug 199820 Mar 2001Kimberly-Clark Worldwide, Inc.For reating nonwovens fabrics to imparting rewetting properties
US622497717 May 19951 May 2001Kimberly-Clark Worldwide, Inc.Blend of a high crystallinity polypropylene polymer and a random block copolymer of polypropylene and polyethylene.
US623876731 Jul 199829 May 2001Kimberly-Clark Worldwide, Inc.Laminate having improved barrier properties
US624204110 Nov 19985 Jun 2001Mohammad W. KatootMethod and composition for modifying the surface of an object
US624527122 Nov 199912 Jun 2001Kimberly-Clark Worldwide, Inc.Reduced die lip buildup extrusion of polymer compositions
US624883329 Feb 200019 Jun 2001Exxon Mobil Chemical Patents Inc.Fibers and fabrics prepared with propylene impact copolymers
US62672528 Dec 199931 Jul 2001Kimberly-Clark Worldwide, Inc.Fine particle filtration medium including an airlaid composite
US62683022 Apr 199731 Jul 2001Kimberly-Clark Worldwide, Inc.Polyolefin fabric
US628140728 May 199928 Aug 2001Kimberly-Clark Worldwide, Inc.Reduced or controlled relative humidity in air enclosed by diapers, incontinence guards, childcare training pants; reduced skin hydration which is believed to reduce redness and irritation due to contact with fluids
US629693630 Jan 19982 Oct 2001Kimberly-Clark Worldwide, Inc.Coform material having improved fluid handling and method for producing
US630025827 Aug 19999 Oct 2001Kimberly-Clark Worldwide, Inc.Nonwovens treated with surfactants having high polydispersities
US630973625 Jun 199730 Oct 2001Kimberly-Clark Worldwide, Inc.Breathable multilayer film
US63152158 Feb 200013 Nov 2001Kimberly-Clark Worldwide, Inc.Apparatus and method for ultrasonically self-cleaning an orifice
US63460978 Aug 199712 Feb 2002Kimberly-Clark Worldwide, Inc.Personal care product with expandable BM containment
US63482539 Feb 200019 Feb 2002Kimberly-Clark Worldwide, Inc.Sanitary pad for variable flow management
US635039922 Dec 199926 Feb 2002Kimberly-Clark Worldwide, Inc.Spinning molten polymers and treatment
US635071130 Oct 199826 Feb 2002Kimberly-Clark Worldwide, Inc.Porous nonwoven web with soluble ethylene oxide-propylene oxide block copolymer; erythrocytes are agglomerated or lysed; sanitary napkins, diapers, dressings
US636238920 Nov 199826 Mar 2002Kimberly-Clark Worldwide, Inc.Elastic absorbent structures
US636508824 Jun 19992 Apr 2002Kimberly-Clark Worldwide, Inc.Electret treatment of high loft and low density nonwoven webs
US636844427 Oct 19999 Apr 2002Kimberly-Clark Worldwide, Inc.Apparatus and method for cross-directional stretching of polymeric film and other nonwoven sheet material and materials produced therefrom
US636860912 Apr 19999 Apr 2002Kimberly-Clark Worldwide, Inc.Absorbent structure including a thin, calendered airlaid composite and a process for making the composite
US636929219 Dec 19979 Apr 2002Kimberly-Clark Worldwide, Inc.Absorbent articles having reduced outer cover dampness
US637576915 Aug 200023 Apr 2002Kimberly-Clark Worldwide, Inc.Method of applying curved leg elastics using pucks with curved surfaces
US638026421 Dec 199530 Apr 2002Kimberly-Clark CorporationSupplying pressurized multi-component liquid to ultrasonicator apparatus, applying ultrasonic energy to pressurized liquid but not die tip while exit orifice receives pressurized liquid from chamber, passing pressurized liquid out of orifice
US63842973 Apr 19997 May 2002Kimberly-Clark Worldwide, Inc.Peel strip paper, coated with polyvinyl alcohol binder and silicaone release agent; adhesive; baffle blend of polyethylene glycol and acrylic acid-ethylene copolymer; disposable; biodegradable
US638626028 Apr 199914 May 2002Polymer Group, Inc.Apparatus for providing a web of thermoplastic filaments
US639511516 May 200028 May 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with dual refastenable sides and butt seams
US639521610 Jan 200028 May 2002Kimberly-Clark Worldwide, Inc.Method and apparatus for ultrasonically assisted melt extrusion of fibers
US640385825 Mar 199911 Jun 2002Kimberly-Clark Worldwide, Inc.Wettable article
US640985816 May 200025 Jun 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with refastenable lap seams
US640988312 Apr 200025 Jun 2002Kimberly-Clark Worldwide, Inc.Complex fluid retention capacity greater by using a debonding agent in the aqueous suspension, extrusion; elevated energy input with sufficient working of the fibers; disposable absorbent articles
US642388313 Jul 199923 Jul 2002Kimberly-Clark Worldwide, Inc.Liquid reception medium with liquid activated mechanical mass transport means
US643224316 May 200013 Aug 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with dual refastenable lap seams
US643224816 May 200013 Aug 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with refastenable sides and butt seams
US643324328 Dec 199913 Aug 2002Kimberly-Clark Worldwide, Inc.Water permeable porous layer materials treated with surfactant-modified cyclodextrins
US64351166 Jun 200120 Aug 2002Kimberly-Clark Worldwide, Inc.Process for manufacturing shirts with raglan sleeves
US644024615 Aug 200027 Aug 2002Kimberly-Clark Worldwide, Inc.Method of applying curved leg elastics using rotating disks
US644088229 Feb 200027 Aug 2002Exxon Mobil Chemical Patents Inc.Nonwoven fabrics exhibit improved elongation properties; ethylene-propylene copolymer
US644669121 Dec 200010 Sep 2002Kimberly-Clark Worldwide, Inc.Dual capillary spinneret for production of homofilament crimp fibers
US644762816 May 200010 Sep 2002Kimberly-Clark Worldwide, Inc.Process for making a garment with refastenable sides
US645041718 Sep 200017 Sep 2002Kimberly-Clark Worldwide Inc.Ultrasonic liquid fuel injection apparatus and method
US646145714 Apr 20008 Oct 2002Kimberly-Clark Worldwide, Inc.Dimensionally stable, breathable, stretch-thinned, elastic films
US64657123 Aug 200015 Oct 2002Kimberly-Clark Worldwide, Inc.Absorbent articles with controllable fill patterns
US646825531 Aug 200022 Oct 2002Kimberly-Clark Worldwide, Inc.Front/back separation barrier
US647204514 Dec 199929 Oct 2002Kimberly-Clark Worldwide, Inc.Liquid transfer material of a transversely extensible and retractable necked laminate of non-elastic sheet layers
US647560014 Dec 19995 Nov 2002Kimberly-Clark Worldwide, Inc.Composite material having stretch and recovery including a layer of an elastic material and a transversely extensible and retractable necked laminate of non-elastic sheet layers
US647561821 Mar 20015 Nov 2002Kimberly-Clark Worldwide, Inc.Low temperature thermal bonding
US647906126 Oct 200112 Nov 2002Kimberly-Clark Worldwide, Inc.Absorbent structure including a thin, calendered airlaid composite and a process for making the composite
US647915028 Dec 199912 Nov 2002Kimberly-Clark Worldwide, Inc.Compounds and blends which prevent or control odor and impart surface wetting properties to layer materials, comprising polyalkylene glycol surfactant modified odorant
US647915425 Oct 200012 Nov 2002Kimberly-Clark Worldwide, Inc.Coextruded, elastomeric breathable films, process for making same and articles made therefrom
US648219423 Dec 199919 Nov 2002Kimberly-Clark Worldwide, Inc.Pocket design for absorbent article
US648867027 Oct 20003 Dec 2002Kimberly-Clark Worldwide, Inc.Corrugated absorbent system for hygienic products
US64971886 Jun 200124 Dec 2002Kimberly-Clark Worldwide, Inc.Alternate process for manufacturing shirts with inset sleeves
US650397716 Mar 20007 Jan 2003Kimberly-Clark Worldwide, Inc.Cationic polymer, fabric softener and water
US650645628 Sep 200014 Jan 2003Kimberly-Clark Worldwide, Inc.Method for application of a fluid on a substrate formed as a film or web
US650928428 Dec 199921 Jan 2003Kimberly-Clark Worldwide, Inc.Layer materials treated with surfacant-modified chelating agents
US652124129 Dec 199918 Feb 2003Kimberly-Clark Worldwide, Inc.That can bind a cytokine; clay, silica, titanium dioxide, and combinations thereof
US653387920 Feb 200218 Mar 2003Kimberly-Clark Worldwide, Inc.Method of applying curved leg elastics using pucks with curved surfaces
US65341499 Feb 200018 Mar 2003Kimberly-Clark Worldwide, Inc.Intake/distribution material for personal care products
US65379328 Oct 199825 Mar 2003Kimberly-Clark Worldwide, Inc.Sterilization wrap is a barrier material which is impermeable to liquids and microorganisms, while being permeable to gases
US654085715 Aug 20001 Apr 2003Kimberly-Clark Worldwide, Inc.Method of applying curved leg elastics using curved pucks
US654370026 Jul 20018 Apr 2003Kimberly-Clark Worldwide, Inc.Ultrasonic unitized fuel injector with ceramic valve body
US655160729 Dec 199922 Apr 2003Kimberly-Clark Worldwide, Inc.Method for sequestration of skin irritants with substrate compositions
US65574796 Jun 20016 May 2003Kimberly-Clark Worldwide, Inc.Process for manufacturing shirts with inset sleeves
US65692257 Dec 200027 May 2003Kimberly-Clark Worldwide, Inc.Mixture of cavated filler particles and a thermoplastic polymer, the film having voids formed around the cavated filler particles to facilitate the passage of water vapor through the film.
US656927515 Aug 200027 May 2003Kimberly-Clark Worldwide, Inc.Method of optimizing tension in applying leg elastics
US6571960 *16 Apr 20013 Jun 2003Kimberly-Clark Worldwide, Inc.Faucet-mounted water filtration device
US657320527 Jan 20003 Jun 2003Kimberly-Clark Worldwide, Inc.Stable electret polymeric articles
US657681025 Oct 200010 Jun 2003Kimberly-Clark Worldwide, Inc.When the pad is wetted with urine, the gas is released from the effervescent agent to alert the wearer of urination
US65785046 Jun 200117 Jun 2003Kimberly-Clark Worldwide, Inc.Process for manufacturing unibody shirts with sleeves
US657927431 Aug 200017 Jun 2003Kimberly-Clark Worldwide, Inc.Breathable laminate permanently conformable to the contours of a wearer
US65794804 Oct 200017 Jun 2003Kimberly-Clark Worldwide, Inc.Method of maintaining an exterior of an operating die system
US658241229 Dec 200024 Jun 2003Kimberly-Clark Worldwide, Inc.Absorbent swim pants and swimsuits for pre-toilet trained girls with coverage of upper torso
US658281022 Dec 200024 Jun 2003Kimberly-Clark Worldwide, Inc.One-step method of producing an elastic, breathable film structure
US658307612 Nov 199924 Jun 2003Kimberly-Clark Worldwide, Inc.Nonwoven fabrics prepared using visbroken single-site catalyzed polypropylene
US658584115 Aug 20001 Jul 2003Kimberly-Clark Worldwide, Inc.Method of optimizing spacing between elastic members in applying leg elastics
US658989213 Nov 19988 Jul 2003Kimberly-Clark Worldwide, Inc.Bicomponent nonwoven webs containing adhesive and a third component
US659692027 Dec 200022 Jul 2003Kimberly-Clark Worldwide, Inc.Swimwear with fluid draining mechanism
US660008631 May 200029 Jul 2003Kimberly-Clark Worldwide, Inc.Air space acts as thermal insulator and moisture passageway
US66055521 Dec 200012 Aug 2003Kimberly-Clark Worldwide, Inc.Elastic acrylate-containing polymer which is extruded and is dimensionally stable and superabsorbent.
US66082365 May 199819 Aug 2003Kimberly-Clark Worldwide, Inc.Feminine hygiene products with reduced leakage and improved comfort
US66103836 Dec 199926 Aug 2003Kimberly-Clark Worldwide, Inc.Transversely extensible and retractable necked laminate of no-elastic sheet layers
US66109034 Nov 199926 Aug 2003Kimberly-Clark Worldwide, Inc.Disposible product that rapidly absorbs and redistributes surges of fluid; dryness
US661302822 Dec 19982 Sep 2003Kimberly-Clark Worldwide, Inc.Transfer delay for increased access fluff capacity
US661302928 Apr 19992 Sep 2003Kimberly-Clark Worldwide, Inc.Vapor swept diaper
US661303315 Aug 20002 Sep 2003Kimberly-Clark Worldwide, Inc.Pant-like absorbent garments having curved leg cuffs
US661370327 Apr 20002 Sep 2003Kimberly-Clark Worldwide, Inc.Water filters, blood filters, time-release drug delivery agents, diapers, sanitary napkins
US6613704 *12 Oct 20002 Sep 2003Kimberly-Clark Worldwide, Inc.Continuous filament composite nonwoven webs
US661583627 Nov 20009 Sep 2003Kimberly-Clark Worldwide, Inc.Surgical drape having a pocket-forming feature
US661994721 Dec 200016 Sep 2003Kimberly-Clark Worldwide, Inc.Dual capillary spinneret with single outlet for production of homofilament crimp fibers
US662383727 Dec 200023 Sep 2003Kimberly-Clark Worldwide, Inc.Biaxially extendible material
US662590320 Dec 200030 Sep 2003Kimberly-Clark Worldwide, Inc.Shoe cover with slip-resistant sole
US662696127 Apr 200030 Sep 2003Kimberly-Clark Worldwide, Inc.Aqueous-based dispersion of a petrolatum-surfactant mixture; diaper, feminine hygiene article
US662756431 Aug 200030 Sep 2003Kimberly-Clark Worldwide, Inc.Composite elastic in one direction and extensible in another direction
US662778827 Oct 200030 Sep 2003Kimberly-Clark Worldwide, Inc.Swimwear with water drain
US66293405 Apr 20027 Oct 2003Polymer Group, Inc.Acoustic underlayment for pre-finished laminate floor system
US663220525 Aug 200014 Oct 2003Kimberly-Clark Worldwide, Inc.Structure forming a support channel adjacent a gluteal fold
US663221214 Dec 199914 Oct 2003Kimberly-Clark Worldwide, Inc.Breathable laminate permanently conformable to the contours of a wearer
US66323867 Dec 200114 Oct 2003Kimberly-Clark Worldwide, Inc.Creating layer of crimped fibers; traversing layer of crimped fibers through diffuse flow of heated air to set crimps of fibers without substantial melt bonding or relaxation of fibers
US663504115 Aug 200021 Oct 2003Kimberly-Clark Worldwide, Inc.Absorbent garment with asymmetrical leg elastic tension
US663513523 Mar 200121 Oct 2003Kimberly-Clark Worldwide, Inc.Refastenable absorbent product with overlaid side panels and method of making same in the machine direction
US664242926 Jun 20004 Nov 2003Kimberly-Clark Worldwide, Inc.Personal care articles with reduced polymer fibers
US664538821 Dec 200011 Nov 2003Kimberly-Clark CorporationGlass fiber or nonwoven fabric coated with polysaccharides
US664540714 Dec 200111 Nov 2003Kimberly-Clark Worldwide, Inc.Process for making absorbent material with in-situ polymerized superabsorbent
US66475494 Apr 200118 Nov 2003Kimberly-Clark Worldwide, Inc.Finger glove
US664909928 Dec 200118 Nov 2003Kimberly-Clark Worldwide, Inc.Method of incorporating fluid treatment agents into absorbent composites
US664954731 Aug 200018 Nov 2003Kimberly-Clark Worldwide, Inc.Integrated nonwoven laminate material
US664954823 Sep 199918 Nov 2003Kimberly-Clark Worldwide, Inc.Inelastic spunbond polyolefin fibers and breathable layer; tear strength
US665250415 Aug 200025 Nov 2003Kimberly-Clark Worldwide, Inc.Pant-like absorbent garments having curved leak guard flaps
US665269623 Mar 200125 Nov 2003Kimberly-Clark Worldwide, Inc.Cross direction method for making a refastenable garment with overlaid side panels
US66535234 Oct 199925 Nov 2003Kimberly-Clark Worldwide, Inc.Low gauge films and film/nonwoven laminates
US66535244 Dec 200025 Nov 2003Kimberly-Clark Worldwide, Inc.Nonwoven materials with time release additives
US665700931 Aug 20012 Dec 2003Kimberly-Clark Worldwide, Inc.Pressure-sensitive adhesive comprising amorphous polyalpha-olefin including butene-1 copolymer; and crystalline polypropylene; diapers, incontinence pads, medical garments, swim suits
US665710025 Oct 20002 Dec 2003Kimberly-Clark Worldwide, Inc.Pliable substrate, microencapsulated astringent agent that does not contact skin, and urine-soluble or -dispersable adhesive
US66593651 Apr 20029 Dec 2003Kimberly-Clark Worldwide, Inc.Ultrasonic liquid fuel injection apparatus and method
US666302726 Jul 200116 Dec 2003Kimberly-Clark Worldwide, Inc.Unitized injector modified for ultrasonically stimulated operation
US666361128 Sep 199916 Dec 2003Kimberly-Clark Worldwide, Inc.Breathable diaper with low to moderately breathable inner laminate and more breathable outer cover
US667398016 Jul 19996 Jan 2004Kimberly-Clark Worldwide, Inc.Absorbent product with creped nonwoven dampness inhibitor
US66766481 Mar 200113 Jan 2004Kimberly-Clark Worldwide, Inc.Absorbent garment having asymmetric longitudinal absorbent pad
US667703830 Aug 200213 Jan 2004Kimberly-Clark Worldwide, Inc.3-dimensional fiber and a web made therefrom
US667986916 Aug 200020 Jan 2004Kimberly-Clark Worldwide, Inc.Absorbent article having an elastic outer cover
US668042327 Aug 199920 Jan 2004Kimberly-Clark Worldwide, Inc.Absorbent article having reinforced elastic absorbent core
US668630313 Nov 19983 Feb 2004Kimberly-Clark Worldwide, Inc.Bicomponent nonwoven webs containing splittable thermoplastic filaments and a third component
US668911515 Aug 200010 Feb 2004Kimberly-Clark Worldwide, Inc.Absorbent garment with asymmetrical leg elastic spacing
US669661812 Dec 200124 Feb 2004Kimberly-Clark Worldwide, Inc.Absorbent composites exhibiting swelling/deswelling properties
US669953719 Jan 20012 Mar 2004Kimberly-Clark Worldwide, Inc.Waterfast ink receptive coatings for ink jet printing, methods of coating substrates utilizing said coatings, and materials coated with said coatings
US670280027 Oct 20009 Mar 2004Kimberly-Clark Worldwide, Inc.Absorbent garment with transverse and longitudinal stretch
US670613521 Dec 200116 Mar 2004Kimberly-Clark Worldwide, Inc.Process for temporarily stabilizing an extensible web
US670925417 Oct 200123 Mar 2004Kimberly-Clark Worldwide, Inc.Tiltable web former support
US67096231 Nov 200123 Mar 2004Kimberly-Clark Worldwide, Inc.Process of and apparatus for making a nonwoven web
US671212112 Oct 200130 Mar 2004Kimberly-Clark Worldwide, Inc.Antimicrobially-treated fabrics
US671518824 Sep 20026 Apr 20043M Innovative Properties CompanyHinged tab for slot and tab closure systems
US671620528 Dec 20006 Apr 2004Kimberly-Clark Worldwide, Inc.Pant-like absorbent garment having tailored flap and leg elastic
US67197445 Mar 200113 Apr 20043M Innovative Properties CompanyElastic closure tape tab for disposable absorbent articles such as diapers
US672027815 Mar 200213 Apr 2004Milliken & CompanyMethod for producing a spun-bonded nonwoven web with improved abrasion resistance
US67219874 Apr 200120 Apr 2004Kimberly-Clark Worldwide, Inc.Dental wipe
US672303528 Sep 200120 Apr 2004Kimberly-Clark Worldwide, Inc.Method of tucking side panels with side panel fold location control
US672740412 Nov 200227 Apr 2004Kimberly-Clark Worldwide, Inc.Limited absorbent capacity, slow fluid intake, pooling and delayed lock-up in pad; large area of wetness in pant
US673583317 Dec 200218 May 2004Polymer Group, Inc.Nonwoven fabrics having a durable three-dimensional image
US67369161 Nov 200118 May 2004Kimberly-Clark Worldwide, Inc.Hydraulically arranged nonwoven webs and method of making same
US674079218 Dec 200125 May 2004Kimberly-Clark Worldwide, Inc.Cover material with improved fluid handling properties
US675491924 May 200129 Jun 2004Kimberly-Clark Worldwide, Inc.Protective cover article
US675633211 Jun 200129 Jun 2004Jason IncorporatedVehicle headliner and laminate therefor
US675935628 Jun 19996 Jul 2004Kimberly-Clark Worldwide, Inc.Fibrous electret polymeric articles
US675956727 Jun 20016 Jul 2004Kimberly-Clark Worldwide, Inc.Pulp and synthetic fiber absorbent composites for personal care products
US676170912 Apr 200213 Jul 2004Kimberly-Clark Worldwide, Inc.Liquid reception medium with liquid activated mechanical mass transport means
US676213719 Dec 200113 Jul 2004Kimberly-Clark Worldwide, Inc.Meltspun web comprising a thermoplastic polymer and a hydrophobic agent incorporated into the thermoplastic polymer comprising a polydimethylsiloxane, a guerbet ester, or mixtures thereof.
US676512512 Feb 199920 Jul 2004Kimberly-Clark Worldwide, Inc.Wicking action fully utilizes absorbent core; comfort; lower cost
US676750828 Nov 200027 Jul 2004Kimberly-Clark Worldwide, Inc.Antibacterial pretreatment; nonirritating
US676755318 Dec 200127 Jul 2004Kimberly-Clark Worldwide, Inc.Carboxylic acid-based odor control agent, especially citric, malic or tartaric acid; and an organosilicone polymer binder.
US676785228 Dec 200027 Jul 2004Kimberly-Clark Worldwide, Inc.Stretch edge elastic laminate
US67735271 Apr 200210 Aug 2004Kimberly-Clark Worldwide, Inc.Method for obtaining improved ultrasonic bond strength
US677406931 Aug 200110 Aug 2004Kimberly-Clark Worldwide, Inc.Hot-melt adhesive for non-woven elastic composite bonding
US677631628 Sep 200117 Aug 2004Kimberly-Clark Worldwide, Inc.Method of tucking refastenable side seams
US677705612 Oct 200017 Aug 2004Kimberly-Clark Worldwide, Inc.Regionally distinct nonwoven webs
US678020111 Dec 200124 Aug 2004Kimberly-Clark Worldwide, Inc.Cellulose fiber with curl value of > .15, treated with an intra- crystalline swelling agent and coated with a polymeric reactive compound
US678027217 Sep 200124 Aug 20043M Innovative Properties CompanyMethod for producing web for use in making shaped elastic ears disposable absorbent article diapers
US67871845 Dec 20017 Sep 2004Kimberly-Clark Worldwide, Inc.Treated nonwoven fabrics
US679365014 Dec 200121 Sep 2004Kimberly-Clark Worldwide, Inc.Disposable training pant designed specifically for late stage toilet training
US679402425 Oct 200021 Sep 2004Kimberly-Clark Worldwide, Inc.Styrenic block copolymer breathable elastomeric films
US67972269 Oct 200128 Sep 2004Kimberly-Clark Worldwide, Inc.Process of making microcreped wipers
US679785627 Oct 200028 Sep 2004Kimberly-Clark Worldwide Inc.Microbial management in swimwear
US67999577 Feb 20025 Oct 2004Nordson CorporationForming system for the manufacture of thermoplastic nonwoven webs and laminates
US680858217 Mar 200326 Oct 2004Kimberly-Clark Worldwide, Inc.Method of optimizing tension in applying leg elastics
US681186515 Oct 20032 Nov 2004Kimberly-Clark Worldwide, Inc.Film having high breathability induced by low cross-directional stretch
US68121699 Nov 20012 Nov 2004Kimberly-Clark Worldwide, Inc.Sanitary pad, napkin, or wound dressing wherein treatment agent causes red blood cells to agglomerate (antibodies) or lyse (saponin derivatives) as blood containing fluid passes through
US681538324 May 20009 Nov 2004Kimberly-Clark Worldwide, Inc.Nonwoven web comprising plurality of side-by-side bicomponent multilobal fibers comprising high and low melting polymers; raised radially projecting lobes
US681799426 Jul 200216 Nov 2004Kimberly-Clark Worldwide, Inc.Absorbent article with refastenable sides
US682191528 Dec 200023 Nov 2004Kimberly-Clark Worldwide, Inc.Liquid impervious film
US682213627 Oct 200023 Nov 2004Kimberly-Clark Worldwide, Inc.Swimwear with built-in draining mechanism
US682353014 Aug 200130 Nov 2004Kimberly-Clark Worldwide, Inc.For eliminating or reducing the level of bacteria in swim water
US682697320 Dec 20027 Dec 2004Kimberly-Clark Worldwide, Inc.Heated mechanical arm
US68305436 Jun 200114 Dec 2004Kimberly-Clark Worldwide, Inc.Process for manufacturing unibody shirts with sleeves
US683064010 Sep 200214 Dec 2004Kimberly-Clark Worldwide, Inc.Dual capillary spinneret for production of homofilament crimp fibers
US68331713 Apr 200221 Dec 2004Kimberly-Clark Worldwide, Inc.Low tack slip-resistant shoe cover
US683317914 May 200121 Dec 2004Kimberly-Clark Worldwide, Inc.Targeted elastic laminate having zones of different basis weights
US683526420 Dec 200128 Dec 2004Kimberly-Clark Worldwide, Inc.Method for producing creped nonwoven webs
US683586521 Dec 200128 Dec 2004Kimberly-Clark Worldwide, Inc.Antimicrobial nonwoven webs for personal care absorbent articles
US68381549 Dec 19984 Jan 2005Kimberly-Clark Worldwide, Inc.Creped materials
US683849830 Oct 20004 Jan 2005Kimberly-Clark Worldwide, Inc.Colorfastness; waterproofing; mixture of urea, sodium (bi)carbonate and ammonium sulfate; aqueous solution containing cationic polymer
US683859027 Jun 20014 Jan 2005Kimberly-Clark Worldwide, Inc.Pulp fiber absorbent composites for personal care products
US684387228 Dec 200118 Jan 2005Kimberly-Clark Worldwide, Inc.Neck bonded and stretch bonded laminates with perforated nonwovens and method of making
US685290418 Dec 20018 Feb 2005Kimberly-Clark Worldwide, Inc.Neutralized with carboxylic acid odor control agent, suppressing ammonia odor; for use as absorbent diaper, underpants, incontinence product, sanitary napkins, medical clothings
US685855112 Mar 199922 Feb 2005Kimberly-Clark Worldwide, Inc.Ferroelectric fibers and applications therefor
US686392423 Dec 20028 Mar 2005Kimberly-Clark Worldwide, Inc.Method of making an absorbent composite
US686734428 Dec 200115 Mar 2005Kimberly-Clark Worldwide, Inc.Absorbent article with fluid treatment agent
US6868984 *24 Sep 200222 Mar 2005Kimberly-Clark Worldwide, Inc.Method of dispensing a face mask
US686942427 Oct 200022 Mar 2005Kimberly-Clark Worldwide, Inc.Stretchable absorbent garment with non-stretchable liner
US686944121 Mar 200322 Mar 2005Kimberly-Clark Worldwide, Inc.Thermal therapy sleeve
US686967031 May 200122 Mar 2005Kimberly-Clark Worldwide, Inc.Composites material with improved high viscosity fluid intake
US687226722 Mar 200229 Mar 2005Kimberly-Clark Worldwide, Inc.Process for making a garment with dual refastenable sides and butt seams
US687227514 Dec 200129 Mar 2005Kimberly-Clark Worldwide, Inc.Chemically reacting a superabsorbent polymer precursor on or in the fibrous web
US687278431 Aug 200129 Mar 2005Kimberly-Clark Worldwide, Inc.Modified rubber-based adhesives
US687531519 Dec 20025 Apr 2005Kimberly-Clark Worldwide, Inc.Non-woven through air dryer and transfer fabrics for tissue making
US687822323 Mar 200112 Apr 2005Kimberly-Clark Worldwide, Inc.Refastenable absorbent product with Z-folded side panels and method of making same in the machine direction
US687823819 Dec 200212 Apr 2005Kimberly-Clark Worldwide, Inc.Non-woven through air dryer and transfer fabrics for tissue making
US687842720 Dec 200212 Apr 2005Kimberly Clark Worldwide, Inc.Encased insulation article
US687864820 Nov 200312 Apr 2005Polymer Group, Inc.Regionally imprinted nonwoven fabric
US688021123 Jan 200319 Apr 20053M Innovative Properties CompanyClosure elements for disposable absorbent articles such as diapers, training pants and incontinence pads
US688077011 Jul 200319 Apr 2005Kimberly-Clark Worldwide, Inc.Method of retrofitting an unitized injector for ultrasonically stimulated operation
US68812057 Dec 200119 Apr 2005Kimberly-Clark Worldwide, Inc.Independence of components in absorbent articles
US688121921 Mar 200319 Apr 2005Kimberly-Clark Worldwide, Inc.Method of extending the therapeutic duration of a thermal therapy product
US688137530 Aug 200219 Apr 2005Kimberly-Clark Worldwide, Inc.Method of forming a 3-dimensional fiber into a web
US688423819 Dec 200126 Apr 2005Kimberly-Clark Worldwide, Inc.Method of providing a series of disposable absorbent articles to consumers
US688754211 Dec 20023 May 2005Kimberly-Clark Worldwide, Inc.Method for treating an elastomeric article
US688794126 Aug 20033 May 2005Kimberly-Clark Worldwide, Inc.Laminated structures
US688804321 Dec 20013 May 2005Kimberly-Clark Worldwide, Inc.Feminine care products for the delivery of therapeutic substances
US689342616 May 200017 May 2005Kimberly-Clark Worldwide, Inc.Absorbent article with refastenable sides
US68939908 Apr 200317 May 2005Kimberly Clark Worldwide, Inc.Stable electret polymeric articles
US689684330 Aug 200224 May 2005Kimberly-Clark Worldwide, Inc.Method of making a web which is extensible in at least one direction
US689734828 Dec 200124 May 2005Kimberly Clark Worldwide, IncComprises chitosans, niacinamide, and ascorbic acid; antibiotic-free
US689970021 Dec 200131 May 2005Kimberly-Clark Worldwide, Inc.Therapeutic agent delivery tampon
US690279628 Dec 20017 Jun 2005Kimberly-Clark Worldwide, Inc.Elastic strand bonded laminate
US690482020 Dec 200214 Jun 2005Kimberly-Clark Worldwide, Inc.Method of using a simulated skin substrate and method for determining material dryness performance
US690845825 Aug 200021 Jun 2005Kimberly-Clark Worldwide, Inc.Swellable structure having a pleated cover material
US690902824 Jul 199821 Jun 2005Kimberly-Clark Worldwide, Inc.Stable breathable elastic garments
US69112286 Jun 200328 Jun 2005Kimberly-Clark Worldwide, Inc.Pad containing astringent agent or source thereof which may be insertable pad or integrated directly into undergarment; astringent does not contact wearer's skin until urination occurs at which time tingling sensation is felt on skin
US691401827 Oct 20005 Jul 2005Kimberly-Clark Worldwide, Inc.Biaxial stretch, breathable laminate with cloth-like aesthetics and method for making same
US691675024 Mar 200312 Jul 2005Kimberly-Clark Worldwide, Inc.High performance elastic laminates made from high molecular weight styrenic tetrablock copolymer
US691898114 Dec 200119 Jul 2005Kimberly-Clark Worldwide, Inc.In situ copolymerization on hydrophilic fibers by separately adding the drops of the polymer precursor composition; diapers, adult incontinence products, feminine sanitary napkins, medical garments, drapes, gowns, bandages, wipes
US692157021 Dec 200126 Jul 2005Kimberly-Clark Worldwide, Inc.Pattern unbonded nonwoven web and process for making same
US692865725 Oct 200216 Aug 2005Kimberly-Clark Worldwide, Inc.Face mask having hook and loop type fastener
US693195120 Dec 200223 Aug 2005Kimberly-Clark Worldwide, Inc.Mechanical device with simulated skin substrate
US693496927 Dec 200230 Aug 2005Kimberly-Clark Worldwide, Inc.Anti-wicking protective workwear and methods of making and using same
US693655428 Nov 200030 Aug 2005Kimberly-Clark Worldwide, Inc.Nonwoven fabric laminate with meltblown web having a gradient fiber size structure
US693664826 Oct 200130 Aug 2005Kimberly-Clark Worldwide, IncA cationic polymer or copolymer, a fabric softener, urea, and ammonium salts of multifunctional weak acids such as ammonium oxalate and ammonium tatrate
US693933419 Dec 20016 Sep 2005Kimberly-Clark Worldwide, Inc.disposable absorbent garments
US69428945 Nov 200113 Sep 20053M Innovative Properties CompanyMethods for producing composite webs with reinforcing discrete polymeric regions
US694524924 Sep 200220 Sep 2005Kimberly-Clark Worldwide, Inc.Easy gripping face mask
US694619518 Sep 200220 Sep 2005Kimberly-Clark Worldwide, Inc.Compositions for enhanced thermal bonding
US694849924 Sep 200227 Sep 2005Kimberly-Clark Worldwide, Inc.Easy gripping face mask
US694908911 Dec 200227 Sep 2005Kimberly-Clark Worldwide, Inc.Method of providing a series of disposable absorbent articles to consumers
US695788427 Dec 200225 Oct 2005Kinberly-Clark Worldwide, Inc.High-speed inkjet printing for vibrant and crockfast graphics on web materials or end-products
US695810323 Dec 200225 Oct 2005Kimberly-Clark Worldwide, Inc.Entangled fabrics containing staple fibers
US696676220 Apr 200022 Nov 2005Rieter PerfojetDevice for opening and distributing a bundle of filaments when producing a nonwoven textile web
US696717826 Dec 200222 Nov 2005Kimberly-Clark Worldwide, Inc.Elastic strand laminate
US696726128 Dec 200122 Nov 2005Kimberly-Clark WorldwideBandage, methods of producing and using same
US696937827 Oct 200029 Nov 2005Kimberly-Clark Worldwide, Inc.Biaxial stretch garment
US697697825 Jan 200220 Dec 2005Kimberly-Clark Worldwide, Inc.Refastenable pull-on training pant with diagonal seams
US697848626 Dec 200227 Dec 2005Kimberly-Clark Worldwide, Inc.Garment including an elastomeric composite laminate
US698223127 Oct 20003 Jan 2006Kimberly-Clark Worldwide, Inc.Elastomeric, breathable laminate with enhanced breathability upon extension
US698427925 Nov 200210 Jan 2006Kimberly-Clark Worldwide, Inc.Process to make boxer shorts with an absorbent core
US698912521 Nov 200224 Jan 2006Kimberly-Clark Worldwide, Inc.Process of making a nonwoven web
US699409120 Dec 20027 Feb 2006Kimberly-Clark Worldwide, Inc.Surgical drape with diverting feature
US699685113 Dec 200114 Feb 2006Kimberly-Clark Worldwide, Inc.Permeable, close to the body liner for swimwear
US700205513 Apr 200421 Feb 2006Kimberly-Clark Worldwide, Inc.Toilet training article containing a foaming agent
US700849616 Dec 20027 Mar 2006Kimberly-Clark Worldwide, Inc.One-step necked-bonded laminate process and apparatus
US70121694 Apr 200114 Mar 2006Kimberly-Clark Worldwide, Inc.Disposable finger sleeve for appendages
US70135417 Apr 200321 Mar 2006Polymer Group, Inc.Nonwoven fabrics having compound three-dimensional images
US70151552 Jul 200221 Mar 2006Kimberly-Clark Worldwide, Inc.Elastomeric adhesive
US70184979 Apr 200328 Mar 2006Kimberly-Clark Worldwide, Inc.Printing a first superabsorbent precursor including a monomer, a crosslinking agent and a reducing agent, and a second precursor including a monomer, a crosslinking agent and an oxidizing agent in discrete, spaced-apart locations
US70189452 Jul 200228 Mar 2006Kimberly-Clark Worldwide, Inc.Composition and method for treating fibers and nonwoven substrates
US702220123 Dec 20024 Apr 2006Kimberly-Clark Worldwide, Inc.Entangled fabric wipers for oil and grease absorbency
US702512329 Jan 199911 Apr 2006Kimberly-Clark Worldwide, Inc.Fluid distribution system for thermal transfer rollers
US70259146 Dec 200111 Apr 2006Kimberly-Clark Worldwide, Inc.Multilayer approach to producing homofilament crimp spunbond
US703275119 Dec 200225 Apr 2006Kimberly-Clark Worldwide, Inc.Dispensing assembly for single piece face mask
US703711220 Dec 20022 May 2006Kimberly-Clark Worldwide, Inc.Virtual arm for measurement of humidity, temperature, and water vapor transmission rate in materials
US70374575 Nov 20012 May 20063M Innovative Properties CompanySystems and methods for composite webs with structured discrete polymeric regions
US703757120 Dec 20012 May 2006Kimberly-Clark Worldwide, Inc.laminate of first and second substrates fused together at certain portions so that the unfused portions form pockets that contain the functional material such as activated carbon that absorb odors, impart comfort
US704502931 May 200116 May 2006Kimberly-Clark Worldwide, Inc.Structured material and method of producing the same
US704503126 Mar 200316 May 2006Kimberly-Clark Worldwide, Inc.Method of optimizing spacing between elastic members in applying leg elastics
US704760627 Mar 200323 May 2006Polymer Group, Inc.Two-sided nonwoven fabrics having a three-dimensional image
US705633521 Mar 20036 Jun 2006Kimberly-Clark Worldwide, Inc.Thermal therapy sleeve
US707337324 Nov 200311 Jul 2006Kimberly-Clark Worldwide, Inc.Absorbent structure having enhanced intake performance characteristics and method for evaluating such characteristics
US708383920 Dec 20011 Aug 2006Kimberly-Clark Worldwide, Inc.A wrap can produce exothermic or endothermic reaction to heat or cool the body, by applying a tensile force on an inner substrate to rupture, positioning between two exterior substrates
US708609521 Nov 20028 Aug 2006Kimberly-Clark Worldwide, Inc.Boxer-style absorbent underpant and method of making same
US708640413 Dec 20048 Aug 2006Kimberly-Clark Worldwide, Inc.Surgical drape with adjustable fenestration
US710571631 Dec 200312 Sep 2006Kimberly-Clark Worldwide, Inc.Absorbent articles
US711863931 May 200110 Oct 2006Kimberly-Clark Worldwide, Inc.Structured material having apertures and method of producing the same
US712777124 Jun 200331 Oct 2006Kimberly-Clark Worldwide, Inc.Dental wipe
US713797119 Mar 200221 Nov 2006Kimberly-Clark Worldwide, Inc.Incontinence garment having pleated extensible liquid retention layer
US714114226 Sep 200328 Nov 2006Kimberly-Clark Worldwide, Inc.productivity can be improved by altering the structure, such as the surface contour and/or drainage characteristics, of papermaking fabrics for re-use, preferably while on the machine
US714151816 Oct 200328 Nov 2006Kimberly-Clark Worldwide, Inc.Durable charged particle coatings and materials
US714816011 May 200412 Dec 2006Saint-Gobain Technical Fabrics Canada, Ltd.Water vapor breathable, liquid water resistant material
US715061622 Dec 200319 Dec 2006Kimberly-Clark Worldwide, IncDie for producing meltblown multicomponent fibers and meltblown nonwoven fabrics
US7153261 *26 Apr 200426 Dec 2006Tyco Healthcare Group LpSurgical hand access apparatus
US715574627 Dec 20022 Jan 2007Kimberly-Clark Worldwide, Inc.Anti-wicking protective workwear and methods of making and using same
US717817119 Aug 200220 Feb 2007Kimberly-Clark Worldwide, Inc.Elastomeric gloves having enhanced breathability
US718988821 Dec 200113 Mar 2007Kimberly-Clark Worldwide, Inc.Nonabsorbent surge layer having discrete regions of superabsorbent and method for making
US719478823 Dec 200327 Mar 2007Kimberly-Clark Worldwide, Inc.Soft and bulky composite fabrics
US719478923 Dec 200327 Mar 2007Kimberly-Clark Worldwide, Inc.Abraded nonwoven composite fabrics
US719572922 Dec 200327 Mar 20073M Innovative Properties CompanyComposite webs and closure systems
US719602620 Jun 200327 Mar 2007Kimberly-Clark Worldwide, Inc.Fibers providing controlled active agent delivery
US719862119 Dec 20023 Apr 2007Kimberly-Clark Worldwide, Inc.Attachment assembly for absorbent article
US71986882 Jun 20053 Apr 2007Kimberly-Clark Worldwide, Inc.Process to make boxer shorts having a contracted crotch region
US72204787 Nov 200322 May 2007Kimberly-Clark Worldwide, Inc.filling crystal structured linear low density olefin polymer with fillers, then blending with thermoplastic elastomers, extruding the blends into films and orienting to demonstrates breathability and elasticity; tensile strength; outercover of a personal care article
US7226880 *31 Dec 20025 Jun 2007Kimberly-Clark Worldwide, Inc.Breathable, extensible films made with two-component single resins
US722951523 Jul 200212 Jun 2007Kimberly-Clark Worldwide, Inc.Process for making a garment with refastenable sides
US723831413 Mar 20033 Jul 20073M Innovative Properties CompanyPolymer transfer apparatus, methods, and composite webs
US724149315 Dec 200410 Jul 2007Kimberly-Clark Worldwide, Inc.Adding a crystalline polymer such as isotactic polypropylene to conventional rubber-based construction adhesives improves bond strength over conventional elastic attachment adhesives; particularly suitable for use in absorbent articles.
US724721530 Jun 200424 Jul 2007Kimberly-Clark Worldwide, Inc.Method of making absorbent articles having shaped absorbent cores on a substrate
US725287031 Dec 20037 Aug 2007Kimberly-Clark Worldwide, Inc.Nonwovens having reduced Poisson ratio
US727063130 Mar 200418 Sep 2007Kimberly-Clark Worldwide, Inc.Method of tucking side panels with side panel fold location control
US727072313 Aug 200418 Sep 2007Kimberly-Clark Worldwide, Inc.Microporous breathable elastic film laminates, methods of making same, and limited use or disposable product applications
US72708894 Nov 200318 Sep 2007Kimberly-Clark Worldwide, Inc.Tackified amorphous-poly-alpha-olefin-bonded structures
US72766421 Apr 20052 Oct 2007Kimberly-Clark Worldwide, Inc.Pattern unbonded nonwoven web and process for making same
US728234916 Dec 200316 Oct 2007Kimberly-Clark Worldwide, Inc.Solvatochromatic bacterial detection
US728517830 Sep 200423 Oct 2007Kimberly-Clark Worldwide, Inc.Method and apparatus for making a wrapped absorbent core
US729054523 Dec 20046 Nov 2007Kimberly-Clark Worldwide, Inc.Face mask with anti-fog folding
US72942384 Feb 200513 Nov 2007Kimberly-Clark Worldwide, Inc.Non-woven through air dryer and transfer fabrics for tissue making
US729739513 Jun 200320 Nov 2007Kimberly-Clark Worldwide, Inc.Water insoluble; water swelling; friction resistance
US730077028 Apr 200527 Nov 2007Kimberly-Clark Worldwide, Inc.Detection of microbe contamination on elastomeric articles
US731216723 Dec 200225 Dec 2007Kimberly-Clark Worldwide, Inc.Breathable multilayer films for use in absorbent articles
US73168402 Jul 20028 Jan 2008Kimberly-Clark Worldwide, Inc.Elastomeric composites and elastomeric composite laminates including reinforcement strands incorporated into an elastomeric adhesive film. The strands may vary in terms of levels of tension. Facing layers, such as nonwoven webs, can
US73168424 Nov 20038 Jan 2008Kimberly-Clark Worldwide, Inc.High-viscosity elastomeric adhesive composition
US732094820 Dec 200222 Jan 2008Kimberly-Clark Worldwide, Inc.Extensible laminate having improved stretch properties and method for making same
US73267511 Dec 20035 Feb 2008Kimberly-Clark Worlwide, Inc.Method of thermally processing elastomeric compositions and elastomeric compositions with improved processability
US732962117 Dec 200312 Feb 2008Kimberly-Clark Worldwide, Inc.May be incorporated into a garment in any suitable capacity, such as in side panels, ears, waistbands, leg elastics, and/or outer covers
US73351904 Feb 200526 Feb 2008Kimberly-Clark Worldwide, Inc.Method of providing a series of disposable absorbent articles to consumers
US733527326 Dec 200226 Feb 2008Kimberly-Clark Worldwide, Inc.Method of making strand-reinforced elastomeric composites
US733851623 Dec 20044 Mar 2008Kimberly-Clark Worldwide, Inc.Oxidizable metal powder, carbon component, crosslinked water insoluble polymer latex binder; coating is generally free of water prior to activation.
US733862518 Sep 20024 Mar 2008Kimberly-Clark Worldwide, Inc.Methods of restoring elasticity after stiffening treatments
US734173731 Dec 200211 Mar 2008Kimberly-Clark Worldwide, Inc.Medicated tampon
US734452615 Dec 200318 Mar 2008Kimberly-Clark Worldwide, Inc.Absorbent garment
US734473231 Dec 200218 Mar 2008Kimberly-Clark Worldwide, Inc.Tampon body manufactured at first manufacturing facility and dosage form coupled to body, dosage form includes therapeutic agent manufactured at second facility
US735509118 Sep 20028 Apr 2008Kimberly-Clark Worldwide, Inc.Elastomeric nonwoven with attached superabsorbent polymer
US738166620 Dec 20023 Jun 2008Kimberly-Clark Worldwide, Inc.Thermoplastic resin matrix core containing filler particles and a telomerized fluorochemical covered on both sides with a skin layer of thermoplastic polymer matrix; laminate in which skin layers are bound to a nonwoven fabric; surgical gowns, masks, scrubs and drapes; sterile wraps; windows
US73844911 Sep 200510 Jun 2008Kimberly-Clark Worldwide, Inc.Apparatus and methods for making crosslinked elastic laminates
US739045123 Jun 200624 Jun 20083M Innovative Properties CompanyComposite webs and closure systems
US739334620 Dec 20021 Jul 2008Kimberly-Clark Worldwide, Inc.Disposable leak-proof containment garment
US73937999 Dec 20031 Jul 2008Saint-Gobain Technical Fabrics Canada, LtdComposite sheet of layers of a lightweight, non-wet laid polyester nonwoven, a polyurethane breathable film, a polymer-coated polyester mesh, and a lightweight, non-wet laid, polyester nonwoven material; high strength to weight ratio
US739634930 Sep 20048 Jul 2008Kimberly-Clark Worldwide, Inc.Wrapped absorbent core
US73967828 Oct 20028 Jul 2008Kimberly-Clark Worldwide, IncDisposable products; hot melt adhesives; multilayer; impervious backing, permeable layer and absorber core
US739960828 Apr 200515 Jul 2008Kimberly-Clark Worldwide, Inc.Disposable wipe of nonwoven web of cellulosic fibers coated with Reichardt's dye; detectable color change upon exposure to bacteria; utilizes a test dye that undergoes a detectable color change in the presence of one or more microbes
US740995316 Dec 200312 Aug 2008Kimberly-Clark Worldwide, Inc.Surgical drape having an expandable member
US741355016 Oct 200319 Aug 2008Kimberly-Clark Worldwide, Inc.Visual indicating device for bad breath
US742271215 Dec 20059 Sep 2008Kimberly-Clark Worldwide, Inc.Technique for incorporating a liquid additive into a nonwoven web
US742551725 Jul 200316 Sep 2008Kimberly-Clark Worldwide, Inc.Nonwoven fabric with abrasion resistance and reduced surface fuzziness
US743887516 Oct 200321 Oct 2008Kimberly-Clark Worldwide, Inc.Method for reducing odor using metal-modified silica particles
US744472228 Oct 20054 Nov 2008Kimberly-Clark Worldwide, Inc.Refastenable absorbent garment
US7452412 *24 Aug 200418 Nov 2008Midwest Research Institute, Inc.High-efficiency filter device and method for making same
US746942730 Jun 200530 Dec 2008Kimberly-Clark Worldwide, Inc.Stretchable and permeable non-woven protective gloves
US747604730 Apr 200413 Jan 2009Kimberly-Clark Worldwide, Inc.Activatable cleaning products
US747635031 Aug 200413 Jan 2009Aktiengesellschaft Adolph SaurerMethod for manufacturing thermoplastic nonwoven webs and laminates
US747644731 Dec 200213 Jan 2009Kimberly-Clark Worldwide, Inc.Elastomeric materials
US748844120 Dec 200210 Feb 2009Kimberly-Clark Worldwide, Inc.Use of a pulsating power supply for electrostatic charging of nonwovens
US748852016 Oct 200310 Feb 2009Kimberly-Clark Worldwide, Inc.High surface area material blends for odor reduction, articles utilizing such blends and methods of using same
US749119615 Dec 200317 Feb 2009Kimberly-Clark Worldwide, Inc.Absorbent garment
US749186331 Dec 200217 Feb 2009Kimberly-Clark Worldwide, Inc.Secondary lotioned article
US750406016 Oct 200317 Mar 2009Kimberly-Clark Worldwide, Inc.Method and apparatus for the production of nonwoven web materials
US750704722 Dec 200424 Mar 2009Kimberly-Clark Worldwide, Inc.Finger wipe containing a composition in a rupturable reservoir
US751716629 Jul 200514 Apr 2009Kimberly-Clark Worldwide, Inc.Applicator with discrete pockets of a composition to be delivered with use of the applicator
US751757918 Jul 200714 Apr 2009Kimberly-Clark Worldwide, Inc.Tackified amorphous-poly-alpha-olefin-bonded structures
US753131931 Aug 200612 May 2009Kimberly-Clark Worldwide, Inc.Array for rapid detection of a microorganism
US753147130 Jan 200712 May 2009Kimberly-Clark Worldwide, Inc.Substrate containing a deodorizing ink
US75344818 Aug 200619 May 20093M Innovative Properties CompanyShaped elastic tab laminates
US754917814 Dec 200723 Jun 2009Kimberly-Clark Worldwide, Inc.Patch for securing a surgical gown tie
US754918818 Oct 200523 Jun 2009Kimberly-Clark Worldwide, Inc.Dental wipe
US755250129 Apr 200530 Jun 2009Kimberly-Clark Worldwide, Inc.Finger wipe with improved seam structure
US755330222 Dec 200330 Jun 2009Kimberly-Clark Worldwide, Inc.Packaged interlabial article
US756598731 Aug 200528 Jul 2009Kimberly-Clark Worldwide, Inc.Pull tab activated sealed packet
US756825128 Dec 20064 Aug 2009Kimberly-Clark Worldwide, Inc.Process for dyeing a textile web
US757538431 Aug 200518 Aug 2009Kimberly-Clark Worldwide, Inc.Fluid applicator with a pull tab activated pouch
US758217822 Nov 20061 Sep 2009Kimberly-Clark Worldwide, Inc.Forming an elastic film that comprises a thermoplastic elastomer and semi-crystalline polyolefin; materials remain relatively inelastic prior to incorporation into a final product, but which achieve a certain level of elasticity after having been activated in the final product
US758230823 Dec 20021 Sep 2009Kimberly-Clark Worldwide, Inc.Odor control composition
US758248516 Oct 20031 Sep 2009Kimberly-Clark Worldride, Inc.Breath testing apparatus which utilizes 4,4'-bis(dimethylamino)-benzhydrol as visual indicating agent for detection of microorganismal infection; colorimetric analysis
US758538231 Oct 20068 Sep 2009Kimberly-Clark Worldwide, Inc.Extruding blend containing at least one thermoplastic elastomer and at least one semi-crystalline polyolefin; film is formed from blend and film is stretched in at least machine direction without applying external heat (e.g., "cold stretched") and bonded to nonwoven web
US758803429 Sep 200415 Sep 2009Kimberly-Clark Worldwide, Inc.Three piece drape with fluid diversion capabilities
US758866222 Mar 200715 Sep 2009Kimberly-Clark Worldwide, Inc.Tissue products containing non-fibrous polymeric surface structures and a topically-applied softening composition
US760165731 Dec 200313 Oct 2009Kimberly-Clark Worldwide, Inc.Single sided stretch bonded laminates, and methods of making same
US760462330 Aug 200520 Oct 2009Kimberly-Clark Worldwide, Inc.Fluid applicator with a press activated pouch
US76080697 Dec 200127 Oct 2009Kimberly-Clark Worldwide, Inc.Absorbent article with captured leg elastics
US760807030 Sep 200427 Oct 2009Kimberly-Clark Worldwide, Inc.Foam-based fasteners
US761200122 Dec 20043 Nov 2009Kimberly-Clark Worldwide, Inc.Thermoplastics; low cost; stretch bonding
US761481229 Sep 200510 Nov 2009Kimberly-Clark Worldwide, Inc.Wiper with encapsulated agent
US761504019 Dec 200110 Nov 2009Kimberly-Clark Worldwide, Inc.Thin, flexible, low capacity absorbent article with leakage protection
US76287787 Dec 20018 Dec 2009Kimberly-Clark Worldwide, Inc.Absorbent article with self-forming seals
US7629501 *8 Sep 20068 Dec 2009Jennifer Lynn LabitReusable diapers
US763276418 Oct 200615 Dec 2009Kimberly-Clark Worldwide, Inc.Absorbent articles including ultrasonically bonded laminated structures
US76406371 Nov 20055 Jan 2010Kimberly-Clark Worldwide, Inc.Methods to modify the fibrous landing layer of a foam based fastener and products made from the same
US764220814 Dec 20065 Jan 2010Kimberly-Clark Worldwide, Inc.Abrasion resistant material for use in various media
US764239528 Dec 20045 Jan 2010Kimberly-Clark Worldwide, Inc.Composition and wipe for reducing viscosity of viscoelastic bodily fluids
US764535323 Dec 200312 Jan 2010Kimberly-Clark Worldwide, Inc.Ultrasonically laminated multi-ply fabrics
US764877131 Dec 200319 Jan 2010Kimberly-Clark Worldwide, Inc.Thermal stabilization and processing behavior of block copolymer compositions by blending, applications thereof, and methods of making same
US765165322 Dec 200426 Jan 2010Kimberly-Clark Worldwide, Inc.Machine and cross-machine direction elastic materials and methods of making same
US765582929 Jul 20052 Feb 2010Kimberly-Clark Worldwide, Inc.Absorbent pad with activated carbon ink for odor control
US766274518 Dec 200316 Feb 2010Kimberly-Clark CorporationStretchable absorbent composites having high permeability
US766929715 Feb 20072 Mar 20103M Innovative Properties CompanyComposite webs and closure systems
US767351628 Dec 20069 Mar 2010Kimberly-Clark Worldwide, Inc.Ultrasonic liquid treatment system
US767405830 Aug 20059 Mar 2010Kimberly-Clark Worldwide, Inc.Disposable wipe with liquid storage and application system
US767430028 Dec 20069 Mar 2010Kimberly-Clark Worldwide, Inc.Applying colorant to one side then moving through ultrasonic vibration system to improve penetration and enhance binding
US767809318 Aug 200316 Mar 2010Kimberly-Clark CorporationPermeable, close to the body liner for swim wear
US767836716 Oct 200316 Mar 2010Kimberly-Clark Worldwide, Inc.Forming a coordination complex between bifunctional chelate compounds having a positive zeta potential and a transition metal; placing the particles on a substrate to improve deodorizing capacity; facemasks
US767871631 Aug 200616 Mar 2010Kimberly-Clark Worldwide, Inc.Hydrogel-web composites for thermal energy transfer applications and methods of making the same
US76823491 Aug 200323 Mar 2010Kimberly-Clark Worldwide, Inc.Fastener orientation for packaged garments having refastenable seams
US768255430 Aug 200523 Mar 2010Kimberly-Clark Worldwide, Inc.Method and apparatus to mechanically shape a composite structure
US768564920 Jun 200530 Mar 2010Kimberly-Clark Worldwide, Inc.Surgical gown with elastomeric fibrous sleeves
US768679615 Dec 200330 Mar 2010Kimberly-Clark Worldwide, Inc.Absorbent garment and method for placing an absorbent garment on a wearer's waist
US768684015 Dec 200530 Mar 2010Kimberly-Clark Worldwide, Inc.exothermic coating includes an oxidizable metal such as iron zinc, aluminum, magnesium or alloy, self-crosslinked ethylene-vinyl aceate copolymeric latex and polysaccharide; activatable in the presence of oxygen and moisture to generate heat
US768701230 Aug 200530 Mar 2010Kimberly-Clark Worldwide, Inc.Method and apparatus to shape a composite structure without contact
US768724516 Dec 200430 Mar 2010Kimberly-Clark Worldwide, Inc.Wipe of a nonwoven web of cellulosic fibers coated with Reichardt's dye; detectable color change upon exposure to bacteria
US768768118 May 200130 Mar 2010Kimberly-Clark Worldwide, Inc.Menses specific absorbent systems
US769640131 Jul 200313 Apr 2010Evonik Stockhausen, Inc.Absorbent materials and absorbent articles incorporating such absorbent materials
US770050010 Dec 200320 Apr 2010Kimberly-Clark Worldwide, Inc.Exposure of polylactone surfaces to corona gas discharge, to impart storage stability and water solubility; disposable products; medical equipment
US770053030 Jun 200820 Apr 2010Kimberly Clark Worldwide, Inc.Polysensorial personal care cleanser comprising a quaternary silicone surfactant
US77036988 Sep 200627 Apr 2010Kimberly-Clark Worldwide, Inc.Ultrasonic liquid treatment chamber and continuous flow mixing system
US770434115 Dec 200527 Apr 2010Kimberly-Clark Worldwide, Inc.Method and apparatus for mechanically bonding material webs
US770519423 Feb 200627 Apr 2010Kimberly-Clark Worldwide, Inc.Article for assisting in toilet training
US771235328 Dec 200611 May 2010Kimberly-Clark Worldwide, Inc.Ultrasonic liquid treatment system
US771325214 Dec 200511 May 2010Kimberly-Clark Worldwide, Inc.Therapeutic article including a personal care composition and methods of making the therapeutic article
US771884430 Jun 200418 May 2010Kimberly-Clark Worldwide, Inc.Absorbent article having an interior graphic
US772594822 Dec 20041 Jun 2010Kimberly-Clark Woldwide, Inc.Face mask with offset folding for improved fluid resistance
US772751315 Dec 20051 Jun 2010Kimberly-Clark Worldwide, Inc.contacting an ocular test sample with an N-phenolate betaine dye, wherein the dye undergoes a visible color change in less than about 30 minutes in the presence of bacteria at a pathogenic concentration, and thereafter detecting bacterial conjunctivitis based on the color change
US773635030 Dec 200215 Jun 2010Kimberly-Clark Worldwide, Inc.Absorbent article with improved containment flaps
US774066628 Dec 200622 Jun 2010Kimberly-Clark Worldwide, Inc.Applying colorant to one side then moving through ultrasonic vibration system to improve penetration and enhance binding
US774535618 Dec 200729 Jun 2010Kimberly-Clark Worldwide, Inc.Laminated absorbent product with increased strength in defined areas
US775419716 Oct 200313 Jul 2010Kimberly-Clark Worldwide, Inc.Method for reducing odor using coordinated polydentate compounds
US776306123 Dec 200427 Jul 2010Kimberly-Clark Worldwide, Inc.Thermal coverings
US776344231 Aug 200627 Jul 2010Kimberly-Clark Worldwide, Inc.Using prepatterned solid support for use in classification and diagnosis of diaper rash; colorimetric analysis
US777245630 Jun 200410 Aug 2010Kimberly-Clark Worldwide, Inc.superabsorbent particles having a thermoplastic coating within a matrix of elastomeric polymer fibers; feminine pads, adult incontinence, children's training pant, diaper; polyoxyethylene glycol, ethylene oxide-propylene oxide copolymer; hydroxypropyl cellulose; polyethylene imine
US77809031 Jun 200524 Aug 2010Kimberly-Clark Worldwide, Inc.forming molten polymer fibers from said thermoplastic polymer( blend of polylactic acid homo or copolymer) material; subjecting molten polymer fibers immediately upon extrusion to anneal-quenching at an anneal-quench temperature; exhibits a slow crystallization rate
US77854437 Dec 200631 Aug 2010Kimberly-Clark Worldwide, Inc.Process for producing tissue products
US778567412 Jul 200731 Aug 2010Kimberly-Clark Worldwide, Inc.Delivery systems for delivering functional compounds to substrates and processes of using the same
US778603216 Sep 200831 Aug 2010Kimberly-Clark Worldwide, Inc.Hot-melt adhesive based on blend of amorphous and crystalline polymers for multilayer bonding
US77899276 Jul 20077 Sep 2010Kimberly-Clark Worldwide, Inc.Air permeable nonwoven sheet inserted between clamping surfaces having a hook material; can be used in building construction and renovation projects and to protect electronic operating equipment
US779448615 Dec 200514 Sep 2010Kimberly-Clark Worldwide, Inc.Therapeutic kit employing a thermal insert
US779473716 Oct 200314 Sep 2010Kimberly-Clark Worldwide, Inc.Odor absorbing extrudates
US779534522 Nov 200614 Sep 2010Evonik Stockhausen, LlcCrosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers having acid groups and containing an internal and a surface crosslinking agent, penetration modifier, an aluminum salt, and an insoluble, inorganic powder; high gel bed permeability
US779916210 May 200421 Sep 20103M Innovative Properties CompanyComposite webs with elastic composite structures
US77999678 Apr 200421 Sep 2010Kimberly-Clark Worldwide, Inc.Differentially expanding absorbent structure
US779996821 Dec 200121 Sep 2010Kimberly-Clark Worldwide, Inc.Sponge-like pad comprising paper layers and method of manufacture
US780324431 Aug 200628 Sep 2010Kimberly-Clark Worldwide, Inc.Nonwoven composite containing an apertured elastic film
US780702314 Jun 20075 Oct 2010Kimberly-Clark Worldwide, Inc.Applying thermoplastic to moving creping surface, then pressing surface
US781194925 Nov 200312 Oct 2010Kimberly-Clark Worldwide, Inc.Controlling infections; alcohol resistance
US78159953 Mar 200319 Oct 2010Kimberly-Clark Worldwide, Inc.Prevents fibers or zones of fibers from breaking away from the surface as lint
US781628523 Dec 200419 Oct 2010Kimberly-Clark Worldwide, Inc.odor control substrate (webs, films) with decorative latex coatings
US782000115 Dec 200526 Oct 2010Kimberly-Clark Worldwide, Inc.apply an amount of latent polymer to the stretched elastic members to form the laminate with enough force to overcome a retractive force of the elastic member; used in personal care garments and cleaning cloths
US782001015 Dec 200526 Oct 2010Kimberly-Clark Worldwide, Inc.Treated tissue products having increased strength
US783336914 Dec 200516 Nov 2010Kimberly-Clark Worldwide, Inc.Strand, substrate, and/or composite comprising re-activatable adhesive composition, and processes for making and/or utilizing same
US783391730 Dec 200416 Nov 2010Kimberly-Clark Worldwide, Inc.Extensible and stretch laminates with comparably low cross-machine direction tension and methods of making same
US783391814 Jan 200916 Nov 2010The Dial CorporationWater-activated, disposable two-sided cleaning article
US783766316 Oct 200323 Nov 2010Kimberly-Clark Worldwide, Inc.Odor absorber; color sensitive to odors; colorimetric analysis
US78377722 Apr 201023 Nov 2010Electrolux Home Care Products, Inc.Vacuum cleaner filter assembly
US783783115 Dec 200523 Nov 2010Kimberly-Clark Worldwide, Inc.additive for paper tissue web containing a fatty acid or (meth)acrylic acid-ethylene copolymeric dispersing agent and ethylene or propylene copolymer with a monomer selected from octene, hexene, heptene, decene and dodecene; increased tensile strength; paper towels, facial tissues, bath tissues
US783844720 Dec 200123 Nov 2010Kimberly-Clark Worldwide, Inc.Includes a quaternary ammonium compound, especially benzalkonium chloride
US784102020 Jul 200730 Nov 2010Kimberly-Clark Worldwide, Inc.Easy donning garment
US784216315 Dec 200530 Nov 2010Kimberly-Clark Worldwide, Inc.Embossed tissue products
US784535131 Aug 20057 Dec 2010Kimberly-Clark Worldwide Inc.Germicidal face mask
US785531620 Dec 200221 Dec 2010Kimberly-Clark Worldwide, Inc.Preferentially stretchable laminates with perforated layers
US785805518 Dec 200828 Dec 2010Kimberly-Clark Worldwide, Inc.wetting activates shrinkage; polyvinyl alcohol; helical wrapping
US786255026 Jan 20094 Jan 2011Kimberly-Clark Worldwide, Inc.Mechanical fastening system for an absorbent article
US787216831 Oct 200318 Jan 2011Kimberely-Clark Worldwide, Inc.Stretchable absorbent article
US787501429 Apr 200525 Jan 2011Kimberly-Clark Worldwide, Inc.Absorbent garment having a garment shell
US78791887 Dec 20061 Feb 2011Kimberly-Clark Worldwide, Inc.Additive compositions for treating various base sheets
US787918914 Jun 20071 Feb 2011Kimberly-Clark Worldwide, Inc.Additive compositions for treating various base sheets
US787919014 Jun 20071 Feb 2011Kimberly-Clark Worldwide, Inc.Comprises cellulose fibers, and dispersion of ethylene-octene copolymer, and acrylic acid-ethylene acid copolymer as additive
US787919114 Jun 20071 Feb 2011Kimberly-Clark Worldwide, Inc.Wiping products having enhanced cleaning abilities
US787935016 Oct 20031 Feb 2011Kimberly-Clark Worldwide, Inc.Method for reducing odor using colloidal nanoparticles
US787974430 Aug 20071 Feb 2011Kimberly-Clark Worldwide, Inc.Removing blood stains using a solution of hydrogen peroxide, a surfactant, a chelate agent, an antioxidant and water; reacts with hemoglobin; wipes; antisoilants; shelf life;cleaning compounds
US787974517 Dec 20071 Feb 2011Kimberly-Clark Worldwide, Inc.Adhesive; controlling ratio of amorphous to crystal structure polymer; disposable products; polypropylene and polyethylene layers
US787974730 Mar 20071 Feb 2011Kimberly-Clark Worldwide, Inc.Elastic laminates having fragrance releasing properties and methods of making the same
US788360415 Dec 20058 Feb 2011Kimberly-Clark Worldwide, Inc.Creping process and products made therefrom
US78970789 Mar 20041 Mar 20113M Innovative Properties CompanyMethods of manufacturing a stretched mechanical fastening web laminate
US79107959 Mar 200722 Mar 2011Kimberly-Clark Worldwide, Inc.Absorbent article containing a crosslinked elastic film
US792286128 May 200812 Apr 2011Kimberly-Clark Worldwide, Inc.Processes for increasing strength in defined areas of a laminated absorbent product
US792298328 Jul 200512 Apr 2011Kimberly-Clark Worldwide, Inc.Sterilization wrap with additional strength sheet
US792339116 Oct 200712 Apr 2011Kimberly-Clark Worldwide, Inc.Nonwoven web material containing crosslinked elastic component formed from a pentablock copolymer
US792339216 Oct 200712 Apr 2011Kimberly-Clark Worldwide, Inc.Crosslinked elastic material formed from a branched block copolymer
US792350513 Nov 200712 Apr 2011Kimberly-Clark Worldwide, Inc.Base polymer and high softening point tackifier resin; low cost elastomeric composite laminates; reduced bulk, low add on levels
US792414230 Jun 200812 Apr 2011Kimberly-Clark Worldwide, Inc.Patterned self-warming wipe substrates
US792828230 Apr 200419 Apr 2011Kimberly-Clark Worldwide, Inc.Absorbent products with a linked enzyme treatment
US793194425 Nov 200326 Apr 2011Kimberly-Clark Worldwide, Inc.Controlling infection in fabrics
US793219622 Aug 200326 Apr 2011Kimberly-Clark Worldwide, Inc.Microporous stretch thinned film/nonwoven laminates and limited use or disposable product applications
US793881330 Jun 200410 May 2011Kimberly-Clark Worldwide, Inc.Absorbent article having shaped absorbent core formed on a substrate
US793892122 Nov 200610 May 2011Kimberly-Clark Worldwide, Inc.Strand composite having latent elasticity
US794226424 Dec 200817 May 2011Kimberly-Clark Worldwide, Inc.Sterilization container with peel top
US794381330 Dec 200217 May 2011Kimberly-Clark Worldwide, Inc.Absorbent products with enhanced rewet, intake, and stain masking performance
US794702728 Dec 200724 May 2011Kimberly-Clark Worldwide, Inc.Body adhering absorbent article
US794718412 Jul 200724 May 2011Kimberly-Clark Worldwide, Inc.Treatment chamber for separating compounds from aqueous effluent
US795112715 Dec 200631 May 2011Kimberly-Clark Worldwide, Inc.Composite bodyside liner
US795571022 Dec 20037 Jun 2011Kimberly-Clark Worldwide, Inc.Ultrasonic bonding of dissimilar materials
US796847930 Jun 200828 Jun 2011Kimberly-Clark Worldwide, Inc.Elastic multilayer composite including pattern unbonded elastic materials, articles containing same, and methods of making same
US797666215 Dec 200512 Jul 2011Kimberly-Clark Worldwide, Inc.Laminate containing a fluorinated nonwoven web
US7985209 *15 Dec 200526 Jul 2011Kimberly-Clark Worldwide, Inc.Wound or surgical dressing
US799332215 Dec 20039 Aug 2011Kimberly-Clark Worldwide, Inc.Absorbent garment having outer shell and adjustable absorbent assembly therein
US799407810 Dec 20039 Aug 2011Kimberly-Clark Worldwide, Inc.High strength nonwoven web from a biodegradable aliphatic polyester
US799407917 Dec 20029 Aug 2011Kimberly-Clark Worldwide, Inc.Meltblown scrubbing product
US799832212 Jul 200716 Aug 2011Kimberly-Clark Worldwide, Inc.Ultrasonic treatment chamber having electrode properties
US800355330 Oct 200623 Aug 2011Kimberly-Clark Worldwide, Inc.Elastic-powered shrink laminate
US801213730 Jul 20086 Sep 2011Kimberly-Clark Worldwide, Inc.Packaged body adhering absorbent article and method of applying such article to a wearer
US801753411 Mar 200913 Sep 2011Kimberly-Clark Worldwide, Inc.Fibrous nonwoven structure having improved physical characteristics and method of preparing
US802199623 Dec 200820 Sep 2011Kimberly-Clark Worldwide, Inc.Nonwoven web and filter media containing partially split multicomponent fibers
US802199826 May 201020 Sep 2011Kimberly-Clark Worldwide, Inc.Absorbent structure with superabsorbent material
US802919010 May 20074 Oct 2011Kimberly-Clark Worldwide, Inc.Method and articles for sensing relative temperature
US802948930 Jul 20084 Oct 2011Kimberly-Clark Worldwide, Inc.Body adhering absorbent article and method of adhering such article to a wearer
US80334213 Oct 200711 Oct 2011Kimberly-Clark Worldwide, Inc.Refillable travel dispenser for wet wipes
US80342868 Sep 200611 Oct 2011Kimberly-Clark Worldwide, Inc.Chamber; an inlet end, an outlet end, a packed column of an adsorbent, and an ultrasonic waveguide assembly; ultrasonic energy energizes adsorbent for removal of compounds from textile effluents
US803443027 Oct 200511 Oct 2011Kimberly-Clark Worldwide, Inc.Nonwoven fabric and fastening system that include an auto-adhesive material
US803444031 Oct 200211 Oct 2011Kimberly-Clark Worldwide, Inc.Efficiency
US803866130 Aug 200618 Oct 2011The Procter & Gamble CompanyAbsorbent article with low cold flow construction adhesive
US804398414 Dec 200425 Oct 2011Kimberly-Clark Worldwide, Inc.Layer array of continuous filament strands with elastic melt blown layer deposited; extensible facing layer bonded to only one side of said elastic layer; capable of being rolled for storage; diapers, sanitary napkins; low peel strength
US804425515 Dec 200625 Oct 2011Kimberly-Clark Worldwide, Inc.Treatment of personal care products to reduce leakage
US80530491 Nov 20078 Nov 2011Certainteed CorporationPackaging for insulation products
US805757328 Dec 200715 Nov 2011Kimberly-Clark Worldwide, Inc.Ultrasonic treatment chamber for increasing the shelf life of formulations
US806227530 Jul 200822 Nov 2011Kimberly Clark Worldwide, Inc.Body adhering absorbent article and method for donning such article
US806227631 Mar 200822 Nov 2011Jennifer Lynn LabitReusable diapers
US806245331 Mar 200922 Nov 2011Bae Systems Land & Armaments, L.P.Method for quasi-instantaneous polymerization of filament wound composite materials
US808896728 May 20093 Jan 2012Kimberly-Clark Worldwide, Inc.Disposable absorbent article having an apertured flow control layer
US810113414 Dec 201024 Jan 2012Kimberly-Clark Worldwide, Inc.Sterilization wrap with additional strength sheet
US810546320 Mar 200931 Jan 2012Kimberly-Clark Worldwide, Inc.Creped tissue sheets treated with an additive composition according to a pattern
US813739223 Jun 200620 Mar 2012Kimberly-Clark Worldwide, Inc.Conformable thermal device
US81433181 Jun 201127 Mar 2012Kimberly-Clark Worldwide, Inc.Ultrasonic treatment chamber for preparing emulsions
US814764230 Sep 20043 Apr 2012Kimberly-Clark Worldwide, Inc.Process of making boxer shorts from a web
US815778015 Dec 200817 Apr 2012Kimberly-Clark Worldwide, Inc.Absorbent article having line of weakness for folding the article
US816338815 Dec 200824 Apr 2012Kimberly-Clark Worldwide, Inc.Compositions comprising metal-modified silica nanoparticles
US816885223 Dec 20041 May 2012Kimberly-Clark Worldwide, Inc.Activated carbon substrates
US817208430 Dec 20048 May 2012Kimberly-Clark Worldwide, Inc.Absorbent article packaging
US817657330 Sep 200415 May 2012Kimberly-Clark Worldwide, Inc.Boxer shorts and process of making boxer shorts from one or more webs
US818245714 May 200122 May 2012Kimberly-Clark Worldwide, Inc.Garment having an apparent elastic band
US818255212 Jul 200722 May 2012Kimberly-Clark Worldwide, Inc.Applying colorant to one side then moving through ultrasonic vibration system to improve penetration and enhance binding
US818769730 Apr 200729 May 2012Kimberly-Clark Worldwide, Inc.Cooling product
US819745521 Dec 200412 Jun 2012Kimberly-Clark Worldwide, Inc.Absorbent articles and/or packaging components each having different patterns in a single container
US819745630 Jul 200812 Jun 2012Kimberly-Clark Worldwide, Inc.Body adhering absorbent article
US820602428 Dec 200726 Jun 2012Kimberly-Clark Worldwide, Inc.Ultrasonic treatment chamber for particle dispersion into formulations
US821136910 Feb 20093 Jul 2012Kimberly-Clark Worldwide, Inc.High surface area material blends for odor reduction, articles utilizing such blends and methods of using same
US821181513 Jun 20033 Jul 2012Kimberly-Clark Worldwide, Inc.Absorbent structure having three-dimensional topography on upper and lower surfaces
US821582228 Dec 200710 Jul 2012Kimberly-Clark Worldwide, Inc.Ultrasonic treatment chamber for preparing antimicrobial formulations
US82162031 Jan 200310 Jul 2012Kimberly-Clark Worldwide, Inc.Progressively functional stretch garments
US8216411 *28 Mar 201110 Jul 2012Ahlstrom Nonwovens LlcSpunbonded heat seal material
US82213286 Jun 200817 Jul 2012Kimberly-Clark Worldwide, Inc.Visual indicating device for bad breath
US822137830 Aug 200517 Jul 2012Kimberly-Clark Worldwide, Inc.Combination of refastenable and releasable bonds
US822572916 Dec 200824 Jul 2012Kimberly-Clark Worldwide, Inc.Three-dimensional wiping substrate and method therefor
US822662431 Aug 200724 Jul 2012Kimberly-Clark Worldwide, Inc.Elastic member for a garment having improved gasketing
US822707117 Aug 201024 Jul 20123M Innovative Properties CompanyComposite webs with elastic composite structures
US822765814 Dec 200724 Jul 2012Kimberly-Clark Worldwide, IncFilm formed from a blend of biodegradable aliphatic-aromatic copolyesters
US823638529 Apr 20057 Aug 2012Kimberly Clark CorporationTreatment of substrates for improving ink adhesion to the substrates
US824158724 Dec 200814 Aug 2012Kimberly-Clark Worldwide, Inc.Collapsible sterilization container
US824763817 Dec 200821 Aug 2012Kimberly-Clark Worldwide, Inc.Absorbent article saturation indication system and method
US82519693 Aug 200728 Aug 2012Kimberly-Clark Worldwide, Inc.Body adhering absorbent article
US826230531 Mar 200811 Sep 2012Kimberly-Clark Worldwide, Inc.Package and applicator for liquid or semi-liquid composition
US826263531 Mar 200811 Sep 2012Jennifer Lynn LabitReusable diapers
US82628571 Jul 201011 Sep 2012Kimberly-Clark Worldwide, Inc.Process for producing tissue products
US826906011 Dec 200918 Sep 2012Evonik Stockhausen, LlcAbsorbent materials and absorbent articles incorporating such absorbent materials
US827306618 Jul 200325 Sep 2012Kimberly-Clark Worldwide, Inc.Absorbent article with high quality ink jet image produced at line speed
US828261811 Dec 20029 Oct 2012Kimberly-Clark Worldwide, Inc.Disposable boxer brief
US828277621 Jun 20079 Oct 2012Kimberly-Clark Worldwide, Inc.Wiping product having enhanced oil absorbency
US828751026 Jul 201016 Oct 2012Kimberly-Clark Worldwide, Inc.Patterned application of activated carbon ink
US828767731 Jan 200816 Oct 2012Kimberly-Clark Worldwide, Inc.Printable elastic composite
US829286222 Jul 200923 Oct 2012Kimberly-Clark Worldwide, Inc.Dynamic fitting body adhering absorbent article
US829286815 May 200923 Oct 2012Kimberly-Clark Worldwide, Inc.Process to make boxer shorts having a contracted crotch region
US832343531 Jul 20024 Dec 2012Kimberly-Clark Worldwide, Inc.Mechanical fastening system for an article
US832444530 Jun 20084 Dec 2012Kimberly-Clark Worldwide, Inc.Collection pouches in absorbent articles
US832444630 Jun 20044 Dec 2012Kimberly-Clark Worldwide, Inc.Unitary absorbent core with binding agents
US832878218 Feb 200511 Dec 2012The Procter & Gamble CompanyHydrophobic surface coated light-weight nonwoven laminates for use in absorbent articles
US833391827 Oct 200318 Dec 2012Kimberly-Clark Worldwide, Inc.Method for the production of nonwoven web materials
US833611516 Feb 201025 Dec 2012Kimberly-Clark Worldwide, Inc.Surgical gown with elastomeric fibrous sleeves
US833812830 Mar 201025 Dec 2012Kimberly-Clark Worldwide, Inc.Microbial detection and quantification
US834996316 Oct 20078 Jan 2013Kimberly-Clark Worldwide, Inc.Crosslinked elastic material formed from a linear block copolymer
US83610489 Jun 200329 Jan 2013Kimberly-Clark Worldwide, Inc.Refastenable absorbent product with overlaid side panels and method of making same in the machine direction
US836104930 Sep 200429 Jan 2013Kimberly-Clark Worldwide, Inc.Boxer shorts and process of making boxer shorts with expandable material
US836174227 Jul 201029 Jan 2013Kimberly-Clark Worldwide, Inc.Method for detecting Candida on skin
US836191311 Feb 200829 Jan 2013Kimberly-Clark Worldwide, Inc.Nonwoven composite containing an apertured elastic film
US837205214 Apr 200812 Feb 2013Kimberly-Clark Worldwide, Inc.Tucked fastener for improved fastener performance
US837702729 Apr 200519 Feb 2013Kimberly-Clark Worldwide, Inc.Waist elastic members for use in absorbent articles
US838749729 Jan 20105 Mar 2013Kimberly-Clark Worldwide, Inc.Extensible absorbent layer and absorbent article
US839936816 Oct 200719 Mar 2013Kimberly-Clark Worldwide, Inc.Nonwoven web material containing a crosslinked elastic component formed from a linear block copolymer
US84091636 Jan 20122 Apr 2013Jennifer Lynn LabitReusable diapers having first and second liquid-absorbent flaps
US840961830 Sep 20042 Apr 2013Kimberly-Clark Worldwide, Inc.Fiber substrate with odor absorbent
US841000527 Mar 20072 Apr 2013The Procter & Gamble CompanyStacks of pre-moistened wipes with unique fluid retention characteristics
US842667111 Feb 201123 Apr 2013Polymer Group, Inc.Liquid management layer for personal care absorbent articles
US843085616 Sep 201130 Apr 2013The Procter & Gamble CompanyAbsorbent article with low cold flow construction adhesive
US843085717 Jan 201230 Apr 2013Jennifer Lynn LabitReusable diapers
US844481114 Jun 200721 May 2013Kimberly-Clark Worldwide, Inc.Applying thermoplastic to moving creping surface, then pressing surface
US84505556 Dec 201028 May 2013Kimberly-Clark Worldwide, Inc.Stretchable absorbent article
US845488921 Dec 20074 Jun 2013Kimberly-Clark Worldwide, Inc.Gas treatment system
US847043114 Dec 200725 Jun 2013Kimberly ClarkProduct with embossments having a decreasing line weight
US848642711 Feb 201116 Jul 2013Kimberly-Clark Worldwide, Inc.Wipe for use with a germicidal solution
US850774616 Dec 200813 Aug 2013Kimberly-Clark Worldwide, Inc.Leakage-signaling absorbent article
US851251531 Jan 201120 Aug 2013Kimberly-Clark Worldwide, Inc.Wiping products having enhanced cleaning abilities
US851332312 Dec 200720 Aug 2013Kimbery-Clark Worldwide, Inc.Multifunctional silicone blends
US85180077 Dec 200927 Aug 2013Jennifer Lynn LabitReusable diapers
US85183416 Jul 201227 Aug 2013Kimberly-Clark Worldwide, Inc.Collapsible sterilization container
US855189522 Dec 20108 Oct 2013Kimberly-Clark Worldwide, Inc.Nonwoven webs having improved barrier properties
US85627747 Sep 201122 Oct 2013Kimberly-Clark Worldwide, Inc.Method of forming a nonwoven fabric and fastening system that include an auto-adhesive material
US856301715 Dec 200822 Oct 2013Kimberly-Clark Worldwide, Inc.Disinfectant wet wipe
US856856130 Jan 201229 Oct 2013Kimberly-Clark Worldwide, Inc.Creped tissue sheets treated with an additive composition according to a pattern
US85692212 May 200829 Oct 2013Kimberly-Clark Worldwide, Inc.Stain-discharging and removing system
US85798763 Aug 201012 Nov 2013Kimberly-Clark Worldwide, Inc.Tucked fastener for improved fastener performance
US85914097 Nov 200626 Nov 2013Covidien LpSurgical Hand Access Apparatus
US859745231 Oct 20073 Dec 2013Kimberly-Clark Worldwide, Inc.Methods of stretching wet wipes to increase thickness
US86167597 Sep 200731 Dec 2013Kimberly-Clark Worldwide, Inc.Ultrasonic treatment system
US861744924 May 201231 Dec 2013Kimberly-Clark Worldwide, Inc.Method of making an absorbent structure having three-dimensional topography
US861787412 May 200931 Dec 2013Kimberly-Clark Worldwide, Inc.Array for rapid detection of a microorganism
US862205921 Dec 20047 Jan 2014Kimberly-Clark Worldwide, Inc.Face mask with absorbent element
US862328916 Dec 20097 Jan 2014Kimberly-Clark Worldwide Inc.Single use sterilization container
US863251521 Dec 201221 Jan 2014Kimberly-Clark Worldwide, Inc.Tucked fastener for improved fastener performance
US863261327 Dec 200721 Jan 2014Kimberly-Clark Worldwide, Inc.Process for applying one or more treatment agents to a textile web
US86368339 Sep 201028 Jan 2014E I Du Pont De Nemours And CompanyAir filtration medium with improved dust loading capacity and improved resistance to high humidity environment
US863713010 Feb 201228 Jan 2014Kimberly-Clark Worldwide, Inc.Molded parts containing a polylactic acid composition
US866412914 Nov 20084 Mar 2014Exxonmobil Chemical Patents Inc.Extensible nonwoven facing layer for elastic multilayer fabrics
US86689755 Nov 201011 Mar 2014Exxonmobil Chemical Patents Inc.Fabric with discrete elastic and plastic regions and method for making same
US86729112 Feb 200918 Mar 2014Kimberly-Clark Worldwide, Inc.Body adhering absorbent article
US86729168 Aug 201118 Mar 2014Kimberly-Clark Worldwide, Inc.Absorbent garment having outer shell and adjustable absorbent assembly therein
US86775131 Apr 200525 Mar 2014Kimberly-Clark Worldwide, Inc.Surgical sleeve for glove retention
US868517815 Dec 20081 Apr 2014Kimberly-Clark Worldwide, Inc.Methods of preparing metal-modified silica nanoparticles
US870261816 Jul 201222 Apr 2014Kimberly-Clark Worldwide, Inc.Visual indicating device for bad breath
US870266626 Mar 201322 Apr 2014The Procter & Gamble CompanyAbsorbent article with low cold flow construction adhesive
US87026722 Feb 200922 Apr 2014Kimberly-Clark Worldwide, Inc.Body adhering absorbent article
US87089883 Dec 201029 Apr 2014Kimberly-Clark Worldwide, Inc.Absorbent article configured for controlled deformation
US871526119 Mar 20126 May 2014Kimberly-Clark Worldwide, Inc.Absorbent article having line of weakness for folding the article
US87344132 Feb 200927 May 2014Kimberly-Clark Worldwide, Inc.Packaged body adhering absorbent article
US873441522 Sep 201127 May 2014Kimberly-Clark Worldwide, Inc.Body adhering absorbent article
US874869324 Sep 200910 Jun 2014Exxonmobil Chemical Patents Inc.Multi-layer nonwoven in situ laminates and method of producing the same
US875332411 Apr 201117 Jun 2014Kimberly-Clark Worldwide, Inc.Body adhering absorbent article
US87585478 Feb 201124 Jun 2014Kimberly-Clark Worldwide, Inc.Method of manufacturing a body adhering absorbent article orientated in the cross-machine direction with reduced curl
US87649228 Feb 20111 Jul 2014Kimberly-Clark Worldwide, Inc.Method of manufacturing a body adhering absorbent article orientated in the machine direction with reduced curl
US877221821 Aug 20138 Jul 2014Kimberly-Clark Worldwide, Inc.Stain-discharging and removing system
US877791527 Sep 201115 Jul 2014Jennifer Lynn LabitReusable diapers having seam allowances
US20110226411 *28 Mar 201122 Sep 2011Helen ViazmenskySpunbonded Heat Seal Material
US20110272304 *12 Apr 201110 Nov 2011Georgia-Pacific Consumer Products LpCleaning Wipe for Use With Disinfectants, Method of Manufacture Thereof, and System
USRE39307 *24 Nov 200426 Sep 2006Kimberly-Clark Worldwide, Inc.Hot-melt adhesive having improved bonding strength
USRE3991918 May 199913 Nov 2007Kimberly Clark Worldwide, Inc.Heterogeneous surge material for absorbent articles
DE1950669A1 *8 Oct 196915 Jul 1971Metallgesellschaft AgNeuartiges Endlosfadenvlies
DE2232417A1 *1 Jul 197211 Jan 1973Kendall & CoVerfahren zur erzeugung eines faserflors
DE2235270A1 *19 Jul 19728 Feb 1973Kendall & CoVerfahren zur erzeugung eines faserflors
DE2553812A1 *29 Nov 197510 Jun 1976Buckeye Cellulose CorpGeraeuschloser kraeftiger, tuchartiger schichtstoff
DE2838977A1 *7 Sep 197820 Mar 1980Benecke Gmbh JVorrichtung zur vergleichmaessigung des faserverlaufs in endlosfaser-spinnvlies-analgen
DE19983321T529 Jun 19992 Oct 2013Kimberly-Clark Worldwide, Inc.Stoffartige Nonwoven-Gewebe aus thermoplastischen Polymeren
EP0416620A2 6 Sep 199013 Mar 1991Kimberly-Clark CorporationNonwoven fabric laminates
EP0672357A224 Feb 199520 Sep 1995Kimberly-Clark CorporationImproved coveralls and method of manufacture
EP0685213A216 May 19956 Dec 1995Kimberly-Clark CorporationTampon with integral cover
EP0690163A219 Jun 19953 Jan 1996Kimberly-Clark CorporationNonwoven laminated fabrics
EP0691203A16 Jun 199510 Jan 1996Kimberly-Clark CorporationStretch-thinned film and nonwoven laminate and method for making same
EP1116805A223 Jun 199518 Jul 2001Kimberly-Clark Worldwide, Inc.Method and apparatus for increasing the flow rate of a liquid through an orifice
EP1177336A1 20 Apr 20006 Feb 2002Rieter PerfojetDevice for opening and distributing a bundle of filaments when producing a nonwoven textile web
EP1656918A211 May 200117 May 2006Kimberly-Clark Worldwide, Inc.Absorbent articles with refastenable side seams
EP1745766A26 Apr 199824 Jan 2007Kimberly-Clark Worldwide, Inc.Disposable garments and their manufacturing
EP1839629A24 Jun 20043 Oct 2007Kimberly Clark Worldwide, Inc.Fastenenr orientation for packaged garments having refastenable seams
EP1889590A29 Apr 200220 Feb 2008Kimberly-Clark Worldwide, Inc.Method of tucking side panels with side panel fold location control
EP1929984A25 Feb 200211 Jun 2008Kimberly-Clark Worldwide, Inc.Tucked fastener for improved fastener performance
EP1950343A130 Apr 200330 Jul 2008Kimberly-Clark Worldwide, Inc.Non-woven through air dryer and transfer fabrics for tissue making
EP2009162A25 Dec 200331 Dec 2008Phoenix Intellectuals and Technologies Management, Inc.Process for preparing an elastic nonwoven web
EP2246072A127 Apr 20063 Nov 2010Kimberly-Clark Worldwide, Inc.Sterilization wrap with additional strength sheet
EP2366522A123 Feb 200421 Sep 20113M Innovative Properties Co.Composite webs and closure systems
EP2366523A123 Feb 200421 Sep 20113M Innovative Properties Co.Composite webs and closure systems
EP2458085A125 Jan 200830 May 2012Kimberly-Clark Worldwide, Inc.Substrates having improved ink adhesion and oil crockfastness
WO1981002172A1 *19 Jan 19816 Aug 1981Reba ISystem and method for dispersing filaments
WO1982001180A1 *13 Jul 198115 Apr 1982Crown Zellerbach CorpFilament draw nozzle
WO1998022065A121 Nov 199728 May 1998Kimberly Clark CoMultifunctional absorbent material and products made therefrom
WO1998022066A121 Nov 199728 May 1998Kimberly Clark CoHighly efficient surge material for absorbent articles
WO1998022067A121 Nov 199728 May 1998Kimberly Clark CoAbsorbent articles with controllable fill patterns
WO1998022068A121 Nov 199728 May 1998Kimberly Clark CoHeterogeneous surge material for absorbent articles
WO1998029012A131 Dec 19979 Jul 1998Kirchhoff International Gmbh MCell for filling coverlets or the like
WO1998037828A127 Feb 19983 Sep 1998Kimberly Clark CoAn equipment drape for use with a magnetic resonance imaging device
WO1998037846A129 Jan 19983 Sep 1998Kimberly Clark CoStretchable absorbent structure for personal care products
WO1998056304A15 Jun 199817 Dec 1998Kimberly Clark CoAbsorbent surgical drape
WO1999007317A129 Jul 199818 Feb 1999Kimberly Clark CoAbsorbent article with expandable containment for feces
WO1999022614A130 Oct 199814 May 1999Kimberly Clark CoShoe cover with slip-resistant sole
WO1999047088A112 Mar 199923 Sep 1999Procter & GambleDisposable absorbent article with improved containment means
WO1999048454A117 Mar 199930 Sep 1999Kimberly Clark CoLeakage reducing construction for absorbent articles
WO1999049938A117 Mar 19997 Oct 1999Kimberly Clark CoConformable backpack for encapsulated chemical protection suit
WO1999060975A128 May 19992 Dec 1999Kimberly Clark CoDisposable absorbent articles with bm containment
WO2000002510A28 Jul 199920 Jan 2000Kimberly Clark CoAbsorbent undergarments with improved absorbency system
WO2000045104A128 Jan 20003 Aug 2000Kimberly Clark CoFluid distribution system for thermal transfer rollers
WO2000045762A12 Feb 199910 Aug 2000Michael Vincent GrayDisposable garment
WO2001030258A120 Oct 20003 May 2001Kimberly Clark CoSurgical drape
WO2001034053A17 Nov 200017 May 2001Kimberly Clark CoSlip-resistant and absorbent material
WO2001046029A25 Dec 200028 Jun 2001Kimberly Clark CoFiltering cap for bottled fluids
WO2002013748A27 Aug 200121 Feb 2002Kimberly Clark CoAbsorbent garment with asymmetrical leg elastic spacing
WO2002041800A227 Nov 200130 May 2002Kimberly Clark CoSurgical drape having a pocket-forming feature
WO2003028603A19 Apr 200210 Apr 2003Kimberly Clark CoMethod of tucking side panels with side panel fold location control
WO2003057264A123 Oct 200217 Jul 2003Kimberly Clark CoFeminine care products for the delivery of therapeutic substances
WO2003063829A17 Jan 20037 Aug 2003Kimberly Clark CoMedicated tampon
WO2003084358A15 Mar 200316 Oct 2003Kimberly Clark CoLow tack slip-resistant shoe cover
WO2004011045A218 Jul 20035 Feb 2004Kimberly Clark CoSuperabsorbent materials having high, controlled gel-bed friction angles and composites made from the same
WO2004028638A118 Jul 20038 Apr 2004Kimberly Clark CoEasy gripping face mask
WO2004041538A125 Jun 200321 May 2004Kimberly Clark CoElastomeric film and laminates thereof
WO2004052131A18 Sep 200324 Jun 2004Kimberly Clark CoProcess to make boxer shorts having a contracted crotch region
WO2004060683A126 Nov 200322 Jul 2004Kimberly Clark CoHigh-speed inkjet printing on web materials or end-products
WO2004061184A130 Apr 200322 Jul 2004Kimberly Clark CoEncased insulation article
WO2004084781A14 Mar 20047 Oct 2004Naveen AgarwalMethod of extending the therapeutic duration of a thermal therapy product
WO2004084782A14 Mar 20047 Oct 2004Naveen AgarwalThermal therapy sleeve
WO2005044163A128 Apr 200419 May 2005Kimberly Clark CoStretchable absorbent article
WO2005047389A116 Jun 200426 May 2005Kimberly Clark CoTackified amorphous-poly-alpha-olefin-bonded structures
WO2006071300A114 Sep 20056 Jul 2006Kimberly Clark CoFinger wipe containing a composition in a rupturable reservoir
WO2006073557A19 Nov 200513 Jul 2006Kimberly Clark CoMultilayer film structure with higher processability
WO2007027269A19 Jun 20068 Mar 2007Kimberly Clark CoDisposable wipe with liquid storage and application system
WO2007027368A14 Aug 20068 Mar 2007Kimberly Clark CoCombination of refastenable and releaseable bonds
WO2007040843A217 Aug 200612 Apr 2007Kimberly Clark CoDry wiper with encapsulated agent for surface cleaning
WO2007070130A125 Aug 200621 Jun 2007Kimberly Clark CoCross-directional elastic films with machine direction stiffness
WO2007070146A128 Sep 200621 Jun 2007Kimberly Clark CoLatent elastic laminates and methods of making latent elastic laminates
WO2007070151A14 Oct 200621 Jun 2007Kimberly Clark CoTherapeutic kit employing a thermal insert
WO2007070152A14 Oct 200621 Jun 2007Kimberly Clark CoThermal device having a controlled heating profile
WO2007075277A16 Dec 20065 Jul 2007Kimberly Clark CoConformable thermal device
WO2007078343A225 Aug 200612 Jul 2007Kimberly Clark CoBacteria capturing treatment for fibrous webs
WO2007078558A17 Dec 200612 Jul 2007Kimberly Clark CoDurable exothermic coating
WO2008026103A218 Jul 20076 Mar 2008Kimberly Clark CoWarming product
WO2008026106A218 Jul 20076 Mar 2008Kimberly Clark CoNonwoven composite containing an apertured elastic film
WO2008026118A214 Aug 20076 Mar 2008Kimberly Clark CoHydrogel-web composites for thermal energy transfer applications and methods of making the same
WO2008068659A215 Nov 200712 Jun 2008Kimberly Clark CoProcess for increasing the basis weight of sheet materials
WO2008132618A25 Mar 20086 Nov 2008Kimberly Clark CoCooling product
WO2009022248A229 Jul 200819 Feb 2009Kimberly Clark CoA disposable respirator with exhalation vents
WO2009027875A125 Jun 20085 Mar 2009Kimberly Clark CoElastic member for a garment having improved gasketing
WO2009047671A21 Oct 200816 Apr 2009Kimberly Clark CoPatch for securing a surgical gown tie
WO2009050610A24 Sep 200823 Apr 2009Kimberly Clark CoCrosslinked elastic material formed from a linear block copolymer
WO2009077884A111 Sep 200825 Jun 2009Kimberly Clark CoFilm formed from a blend of biodegradable aliphatic-aromatic copolyesters
WO2009077889A117 Sep 200825 Jun 2009Kimberly Clark CoAntistatic breathable nonwoven laminate having improved barrier properties
WO2009138887A230 Mar 200919 Nov 2009Kimberly-Clark Worldwide, Inc.Latent elastic composite formed from a multi-layered film
WO2010004519A29 Jul 200914 Jan 2010Kimberly-Clark Worldwide, Inc.Substrates having formulations with improved transferability
WO2010086829A229 Jan 20105 Aug 2010Kimberly-Clark Worldwide, Inc.Absorbent articles containing a multifunctional gel
WO2010114899A131 Mar 20107 Oct 2010Sun Chemical CorporationSubstrate printed with a water-based urethane printing ink with improved performance properties
WO2011047252A115 Oct 201021 Apr 2011E. I. Du Pont De Nemours And CompanyMonolithic films having zoned breathability
WO2011047264A115 Oct 201021 Apr 2011E. I. Du Pont De Nemours And CompanyArticles having zoned breathability
WO2011119536A122 Mar 201129 Sep 2011Abbott Cardiovascular Systems Inc.Stent delivery system having a fibrous matrix covering with improved stent retention
WO2011159400A13 May 201122 Dec 2011Exxonmobil Chemical Patents Inc.Nonwoven fabrics made from polymer blends and methods for making same
WO2012003349A230 Jun 20115 Jan 2012The Procter & Gamble CompanyDissolvable fibrous web structure article comprising active agents
WO2012009591A115 Jul 201119 Jan 2012The Procter & Gamble CompanyAbsorbent core
WO2012017404A23 Aug 20119 Feb 2012Kimberly-Clark Worldwide, Inc.System for securing flexible multi-panel sterilization assembly
WO2012064468A218 Oct 201118 May 2012Exxonmobil Chemical Patents Inc.Meltblown nonwoven compositions and methods for making them
WO2012064469A118 Oct 201118 May 2012Exxonmobil Chemical Patents Inc.Bicomponent fibers and methods for making them
WO2012075369A12 Dec 20117 Jun 20123G Mermet CorporationNear infrared reflecting composition and coverings for architectural openings incorporating same
WO2012080867A110 Nov 201121 Jun 2012Kimberly-Clark Worldwide, Inc.Ambulatory enteral feeding system
WO2012085712A122 Nov 201128 Jun 2012Kimberly-Clark Worldwide, Inc.Sterilization container with disposable liner
WO2012104811A13 Feb 20129 Aug 2012Kimberly-Clark Worldwide, Inc.Flexible multi-panel sterilization assembly with bolsters
WO2012177376A11 Jun 201227 Dec 2012Exxonmobil Chemical Patents Inc.Elastic nonwoven materials comprising propylene-based and ethylene-based polymers
WO2013024378A123 Jul 201221 Feb 2013Kimberly-Clark Worldwide, Inc.Disposable protective footwear cover
WO2013046186A128 Sep 20124 Apr 2013Kimberly-Clark Worldwide, Inc.Flexible multi-panel sterilization assembly with mass balancing side tabs
WO2013046187A228 Sep 20124 Apr 2013Kimberly-Clark Worldwide, Inc.Flexible multi-panel sterilization assembly with side tabs
WO2013064922A118 Sep 201210 May 2013Kimberly-Clark Worldwide, Inc.Drainage kit with built-in disposal bag
WO2013068907A15 Nov 201216 May 2013Kimberly-Clark Worldwide, Inc.Method of using a sterilization wrap system
WO2013081756A130 Oct 20126 Jun 2013Exxonmobil Chemical Patents Inc.Polymer compositions and nonwoven compositions prepared therefrom
WO2013095804A112 Nov 201227 Jun 2013Exxonmobil Chemical Patents Inc.Fibers and nonwoven materials prepared therefrom
WO2013098679A24 Dec 20124 Jul 2013Kimberly-Clark Worldwide, Inc.Process for making a flexible multi-panel sterilization assembly
WO2014082014A122 Nov 201330 May 2014E. I. Du Pont De Nemours And CompanyThermally protective cover and method of manufacture thereof
WO2014100527A220 Dec 201326 Jun 2014E. I. Du Pont De Nemours And CompanyThermally stable porous medium
Classifications
U.S. Classification442/366, 28/273, 28/257, 264/123, 156/167, 162/157.5, 264/484, 442/394, 428/523, 28/103, 428/515, 428/483, 264/136, 264/441, 162/157.3
International ClassificationD04H3/16, B29C70/30
Cooperative ClassificationD04H3/16, B29K2105/0854, B29C70/305
European ClassificationB29C70/30A, D04H3/16