US20040082674A1 - Foam element having molded gas passageways and process for production thereof - Google Patents
Foam element having molded gas passageways and process for production thereof Download PDFInfo
- Publication number
- US20040082674A1 US20040082674A1 US10/689,069 US68906903A US2004082674A1 US 20040082674 A1 US20040082674 A1 US 20040082674A1 US 68906903 A US68906903 A US 68906903A US 2004082674 A1 US2004082674 A1 US 2004082674A1
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- US
- United States
- Prior art keywords
- foam
- foam element
- mold
- mold half
- fluid impermeable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/583—Moulds for making articles with cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5628—Heating or ventilating devices characterised by convection by air coming from the vehicle ventilation system, e.g. air-conditioning system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24496—Foamed or cellular component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24496—Foamed or cellular component
- Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249988—Of about the same composition as, and adjacent to, the void-containing component
- Y10T428/249989—Integrally formed skin
Definitions
- the present invention relates to a foam element having at least one channel disposed therein, particularly useful in production of a climate-control vehicular seat (or element thereof).
- the present invention relates to a process for production of such a foam element.
- the present invention relates to a mold particularly adapted for production of the foam element.
- Isocyanate-based polymers are known in the art. Generally, those of skill in the art understand isocyanate-based polymers to be polyurethanes, polyureas, polyisocyanurates and mixtures thereof.
- One of the conventional ways to produce a polyurethane foam is known as the “one-shot” technique.
- the isocyanate, a suitable polyol, a catalyst, water (which acts as a reactive “blowing” agent and can optionally be supplemented with one or more physical blowing agents) and other additives are mixed together at once using, for example, impingement mixing (e.g. high pressure).
- impingement mixing e.g. high pressure
- the polyol would be replaced with a suitable polyamine.
- a polyisocyanurate may result from cyclotrimerization of the isocyanate component.
- Urethane modified polyureas or polyisocyanurates are known in the art. In either scenario, the reactants would be intimately mixed very quickly using a suitable mixing technique.
- prepolymer Another technique for producing foamed isocyanate-based polymers is known as the “prepolymer” technique.
- a prepolymer is produced by reacting polyol and isocyanate (in the case of a polyurethane) in an inert atmosphere to form a liquid polymer terminated with reactive groups (e.g. isocyanates).
- the prepolymer is thoroughly mixed with a lower molecular weight polyol (in the case of producing a polyurethane) or a polyamine (in the case of producing a modified polyurea) in the presence of a curing agent and other additives, as needed.
- foamed isocyanate-based polymers are commonly used to produce parts used in vehicles. These include seats and various trim components.
- the prior system simply provides a heated seat which is of little use to an occupant who seeks improved convenience in a warmer climate.
- the present invention provides foam element comprising a foam matrix having surface, at least a portion of the surface comprising at least one channel having a channel surface, the channel surface being coated with a substantially fluid impermeable material.
- the present invention provides a process for producing a foam element in a mold comprising a first mold half and a second mold, the first mold half comprising at least one ridge element, the first mold half and the second mold half being engageable to define a mold cavity, the process comprising the steps of:
- the present invention provides a mold for producing a foam element, the mold comprising a first mold half and a second mold, the first mold half and the second mold half being engageable to define a mold cavity, the first mold half comprising at least one ridge element and the second mold half comprising at least one post, the least one ridge element and the at least one post oriented to substantially abut one another upon engagement of the first mold half and the second half.
- the present inventors have discovered a novel foam element, having many useful applications.
- the present foam element may used to produce a climate-control vehicular seat—i.e., a seat through which variable temperature air may be passed to improve occupant comfort and convenience.
- a climate-control vehicular seat i.e., a seat through which variable temperature air may be passed to improve occupant comfort and convenience.
- diffusive loss of the variable temperature air e.g., warm, cool or ambient air
- the present foam element may be fabricated without adding significant extra capital expense in the cost of manufacture.
- FIG. 1 illustrates a perspective view of a mold suitable for use in the present process
- FIGS. 2 and 3 illustrate various steps of the present process
- FIG. 4 illustrates a perspective view of a foam element produced in accordance with the present process
- FIG. 5 illustrates a section taken along line V-V in FIG. 4.
- FIG. 6 illustrates an alternate embodiment of a mold useful in the present process.
- an aspect of the present invention relates to a foam element useful in a vehicular seat such as a passenger seat.
- the term “seat” is intended to have its conventional meaning and includes one or both of a cushion (i.e., the portion of the seat on which the occupant sits) and a back or backrest (i.e., the portion of the seat which supports the back of the occupant).
- a “seat” includes both a cushion and a back (or a backrest).
- the term “seat” includes a cushion, a back (or backrest) or a unit construction comprising a cushion and a back (or backrest).
- Mold 100 comprises a lid 105 and a bowl 110 which are releasably engagable by an suitable means (not shown) to define a mold cavity.
- Bowl 110 comprises a series of ridges 115 which are cast into a surface thereof. Ridges 115 serve to hold conventional touch fasteners which aid in securing a trim cover to the foam element to be produced. The disposition of such touch fasteners and use thereof in mold 100 is conventional and within the purview of a person skilled in the art.
- a V-shaped ridge 120 having an apex portion 125 .
- a U-shaped ridge 130 having an apex portion 135 .
- V-shaped portion 120 and U-shaped portion 130 may be cast into bowl 115 by an conventional means.
- a saddle 140 comprising a pair of projections 145 , 147 which are interconnected by a central portion 149 .
- projection 45 abuts apex region 125 of V-shaped portion 120 and projection 147 abuts apex region 135 of U-shaped portion 130 .
- a step in the present process is illustrated. Specifically, a substantially fluid impermeable coating 150 is sprayed via a pressurized spray gun 155 to substantially cover saddle 140 . A similar step (not shown) is conducted to substantially completely cover V-shaped portion 120 and U-shaped portion 130 with the substantially fluid impermeable coating.
- coating 150 is a substantially fluid impermeable coating—i.e., a coating which is substantially impermeable to gases and/or liquids.
- a particularly preferred coating composition is an acrylonitrile-based emulsion coating composition.
- Such a composition is commercially available from Akzo Nobel Coatings Inc. as a black barrier emulsion composition which is available a liquid. The liquid emulsion may be sprayed and the solvent therein will evaporate relatively quickly leaving the substantially fluid impermeable coating.
- this preferred coating may be regarded as a one part system.
- saddle 140 , V-shaped portion 120 and U-shaped portion 130 are substantially completely covered by the substantially fluid impermeable coating.
- a liquid foamable composition 160 is dispensed in bowl 115 from a mixhead 165 .
- mixhead 165 is a high pressure mixhead which serves to combine and impingement mix various streams in the reaction system to produce liquid foamable composition 160 which is then dispensed in bowl 110 .
- This type of mixhead and the use thereof is conventional in the art and within the purview of a person skilled in the art. It is of course possible to use other mixheads such as low pressure mixheads and the like.
- liquid foamable composition 160 expands to substantially completely fill the mold cavity. While not specifically shown in the Figures, it is of course conventional to design mold 100 to include various vent portions to allow expansion gases which are generated during expansion of liquid foamable composition 160 after the mold is closed to escape from the mold cavity. The design in use of such vent techniques is conventional and within the purview of a person skilled in the art.
- foam element 200 is a vehicle cushion having an upper or A-surface 205 disposed in A-surface 205 are a series of trenches 210 corresponding to ridges 115 and bowl 110 of mold 100 . These trenches contain one or more touch fasteners (not shown).
- V-shaped channel 220 having an apex region 225 and a U-shaped channel 230 having an apex region 235 .
- V-shaped 220 corresponds to V-shaped ridge 120 in bowl 110 of mold 100 .
- U-shaped channel 230 corresponds to U-shaped ridge 130 in bowl 110 of mold 100 .
- V-shaped channel 220 and U-shaped channel 230 are interconnected by a saddle channel 240 having a first channel portion 245 connected to apex region 225 and a second channel portion 247 connected to apex region 235 .
- First channel portion 245 and second channel portion 247 are interconnected by a central channel portion 249 which has a surface thereof exposed on the underside of foam element 200 .
- each of V-shaped channel 220 , U-shaped channel 230 and saddle channel 240 are coded with the substantially fluid impermeable coating applied to portions of mold 100 in FIG. 2 .
- a network of channels is formed on the A-surface of foam element 200 which is in communication with the undersigned of foam element 200 .
- Each of these channels is coded with a material which prevents diffusion of gas into the foam element.
- the surface of central channel portion 249 which is exposed to the undersigned of foam element may then be connected to a source of air (or other fluid). The temperature of the air will be controlled elsewhere and the air may simply be pumped through foam element 200 to provide increased comfort and convenience to the occupant of the seat.
- FIG. 6 there is illustrated a perspective view of a bowl 110 a which is preferred for use in producing a foam element to be used for a seat back.
- bowl 110 a comprises an H-shaped ridge 120 a having a central region 125 a .
- the lid (not shown) to be used with bowl 110 a would be modified from lid 105 in Figure to include a post (not shown) have a terminal end which would about with central region 125 a when the mold was closed.
- a frame element e.g., made of metal or substantially rigid foam
- vehicular attachment means and the like in the mold prior to dispensing the liquid foamable composition with the result that these elements, if present, are at least partially molded into the final product.
- a perforated liner such as a ventilation scrim commercially available from Diversified Products
- the perforated liner may be adhered to the foam element, molded into the foam element or otherwise secured to the foam element in a conventional manner. It is therefore contemplated that the appended claims will cover any such modifications or embodiments.
Abstract
In one of its aspects, the invention relates to a foam element comprising an isocyanate-based foam matrix having surface, at least a portion of the surface comprising at least one channel having a channel surface, the channel surface being coated with a substantially fluid impermeable material. The foam element is particularly useful in a climate-control vehicular (e.g., automobile) seat.
Description
- In one of its aspects, the present invention relates to a foam element having at least one channel disposed therein, particularly useful in production of a climate-control vehicular seat (or element thereof). In another of its aspects, the present invention relates to a process for production of such a foam element. In yet another of its aspects, the present invention relates to a mold particularly adapted for production of the foam element.
- Isocyanate-based polymers are known in the art. Generally, those of skill in the art understand isocyanate-based polymers to be polyurethanes, polyureas, polyisocyanurates and mixtures thereof.
- It is also known in the art to produce foamed isocyanate-based polymers. Indeed, one of the advantages of isocyanate-based polymers compared to other polymer systems is that polymerization and foaming can occur in situ. This results in the ability to mould the polymer while it is forming and expanding.
- One of the conventional ways to produce a polyurethane foam is known as the “one-shot” technique. In this technique, the isocyanate, a suitable polyol, a catalyst, water (which acts as a reactive “blowing” agent and can optionally be supplemented with one or more physical blowing agents) and other additives are mixed together at once using, for example, impingement mixing (e.g. high pressure). Generally, if one were to produce a polyurea, the polyol would be replaced with a suitable polyamine. A polyisocyanurate may result from cyclotrimerization of the isocyanate component. Urethane modified polyureas or polyisocyanurates are known in the art. In either scenario, the reactants would be intimately mixed very quickly using a suitable mixing technique.
- Another technique for producing foamed isocyanate-based polymers is known as the “prepolymer” technique. In this technique, a prepolymer is produced by reacting polyol and isocyanate (in the case of a polyurethane) in an inert atmosphere to form a liquid polymer terminated with reactive groups (e.g. isocyanates). To produce the foamed polymer, the prepolymer is thoroughly mixed with a lower molecular weight polyol (in the case of producing a polyurethane) or a polyamine (in the case of producing a modified polyurea) in the presence of a curing agent and other additives, as needed.
- As is known in the art, foamed isocyanate-based polymers are commonly used to produce parts used in vehicles. These include seats and various trim components.
- In the production of a seat, particularly one for use in an automobile, it is known in the art to incorporate heating elements in the seat which are then connected to a power supply and a control system to allow the occupant of the automobile to turn on or turn off the heating elements for occupant convenience in colder climates. In the past, this has been achieved by molding into the seating element some form of resistant heating system.
- This prior art approach is disadvantageous for a number of reasons.
- First, since the heat provided from such a system is somewhat localized, it must be used over substantially the entire surface of the seat which, in many cases, has a deleterious affect on the comfort properties of the seat.
- Second, since the heating system is resistive, there is a risk that some of the heat emitted will penetrate the seat rather than emit the seat toward the occupant. This can lead to premature discolouration and wear of the seat component and, in certain circumstances, may present a safety risk. Alternatively, an intermediate projective layer between the heating element and the seat pad could be used, but this adds extra expense and weight to the seat.
- Third, the prior system simply provides a heated seat which is of little use to an occupant who seeks improved convenience in a warmer climate.
- In light of the foregoing, it would be desirable to have a foam element which could be used in a vehicular seat to provide the ability to cool or heat the occupant in the seat. It would be advantageous if this foam element could be made in a relatively simple manner without the requirement for significant extra capital cost in the foam manufacturing plant.
- It is an object of the present invention to obviate or mitigate at least one of the above-mentioned disadvantages of the prior art.
- It is another object of the present invention to provide a novel foam element.
- It is another object of the present invention to provide a novel process for producing a foam element.
- It is yet another object of the present invention to provide a novel mold for producing a foam element.
- Accordingly, in one of its aspects, the present invention provides foam element comprising a foam matrix having surface, at least a portion of the surface comprising at least one channel having a channel surface, the channel surface being coated with a substantially fluid impermeable material.
- In another of its aspects, the present invention provides a process for producing a foam element in a mold comprising a first mold half and a second mold, the first mold half comprising at least one ridge element, the first mold half and the second mold half being engageable to define a mold cavity, the process comprising the steps of:
- (i) substantially completely covering the at least one ridge element with a substantially fluid impermeable material;
- (ii) dispensing a liquid foamable composition in at least one of the first mold half and the second mold half;
- (iii) closing the first mold half and the second mold half;
- (iv) expanding the liquid foamable composition to substantially completely fill the mold cavity to produce the foam element.
- In yet another of its aspects, the present invention provides a mold for producing a foam element, the mold comprising a first mold half and a second mold, the first mold half and the second mold half being engageable to define a mold cavity, the first mold half comprising at least one ridge element and the second mold half comprising at least one post, the least one ridge element and the at least one post oriented to substantially abut one another upon engagement of the first mold half and the second half.
- Thus, the present inventors have discovered a novel foam element, having many useful applications. In a particularly preferred embodiment, the present foam element may used to produce a climate-control vehicular seat—i.e., a seat through which variable temperature air may be passed to improve occupant comfort and convenience. By designing specially coated channels in the foam element, diffusive loss of the variable temperature air (e.g., warm, cool or ambient air) is obviated or mitigated. Further, the present foam element may be fabricated without adding significant extra capital expense in the cost of manufacture.
- Embodiments of the present invention will be described with reference to the accompanying drawings, in which:
- Embodiments of the present invention will be described with reference to the accompanying drawings, in which:
- FIG. 1 illustrates a perspective view of a mold suitable for use in the present process;
- FIGS. 2 and 3 illustrate various steps of the present process;
- FIG. 4 illustrates a perspective view of a foam element produced in accordance with the present process;
- FIG. 5 illustrates a section taken along line V-V in FIG. 4; and
- FIG. 6 illustrates an alternate embodiment of a mold useful in the present process.
- Accordingly, an aspect of the present invention relates to a foam element useful in a vehicular seat such as a passenger seat. As used throughout this specification, the term “seat” is intended to have its conventional meaning and includes one or both of a cushion (i.e., the portion of the seat on which the occupant sits) and a back or backrest (i.e., the portion of the seat which supports the back of the occupant). As is known in the automotive, airline and related industries, a “seat” includes both a cushion and a back (or a backrest). Thus, as used herein, the term “seat” includes a cushion, a back (or backrest) or a unit construction comprising a cushion and a back (or backrest).
- With reference to FIG. 1, there is a illustrated a schematic perspective view of a
mold 100 useful in the production of a foam element in accordance with the present process.Mold 100 comprises alid 105 and abowl 110 which are releasably engagable by an suitable means (not shown) to define a mold cavity. -
Bowl 110 comprises a series ofridges 115 which are cast into a surface thereof. Ridges 115 serve to hold conventional touch fasteners which aid in securing a trim cover to the foam element to be produced. The disposition of such touch fasteners and use thereof inmold 100 is conventional and within the purview of a person skilled in the art. - Also disposed in
bowl 110 is a V-shapedridge 120 having anapex portion 125. - Also disposed in
bowl 110 is aU-shaped ridge 130 having anapex portion 135. - V-shaped
portion 120 andU-shaped portion 130 may be cast intobowl 115 by an conventional means. - With reference to
lid 105, there is disposed thereon asaddle 140 comprising a pair ofprojections 145,147 which are interconnected by acentral portion 149. As will be apparent to those of skill in the art, whenlid 105 is swung to the closed position with respect tobowl 110, projection 45 abutsapex region 125 of V-shapedportion 120 andprojection 147 abutsapex region 135 ofU-shaped portion 130. - With reference to FIG. 2, a step in the present process is illustrated. Specifically, a substantially fluid
impermeable coating 150 is sprayed via apressurized spray gun 155 to substantially coversaddle 140. A similar step (not shown) is conducted to substantially completely cover V-shapedportion 120 andU-shaped portion 130 with the substantially fluid impermeable coating. - The composition used to produce
coating 150 is not particularly restricted. As stated above, coating 150 is a substantially fluid impermeable coating—i.e., a coating which is substantially impermeable to gases and/or liquids. A particularly preferred coating composition is an acrylonitrile-based emulsion coating composition. Such a composition is commercially available from Akzo Nobel Coatings Inc. as a black barrier emulsion composition which is available a liquid. The liquid emulsion may be sprayed and the solvent therein will evaporate relatively quickly leaving the substantially fluid impermeable coating. Thus, this preferred coating may be regarded as a one part system. - Of course, other coatings are possible including the so-called “two-part” systems where two streams are mixed at the head of the spray gun and react with one another substantially instantaneously to produce the coating.
- Other coating approaches which will work in the present process include in-mold paints or coatings based on polyurethane, and/or polyurea.
- Further, instead of spraying a coating onto
saddle 140, it is possible to affix a film which covers saddle 140 (and separate pieces of film for covering V-shapedportion 120 and U-shaped portion 130). This film may be secured by any conventional means such as vacuum or mechanical means. - Many other approaches to achieving the substantially fluid impermeable coating will be apparent to those of skill in the art having the present specification in hand.
- As this point in the process, saddle140, V-shaped
portion 120 andU-shaped portion 130 are substantially completely covered by the substantially fluid impermeable coating. - With reference to FIG. 3, a further step in the present process is illustrated. Thus, a liquid
foamable composition 160 is dispensed inbowl 115 from amixhead 165. In the embodiments specifically illustrated,mixhead 165 is a high pressure mixhead which serves to combine and impingement mix various streams in the reaction system to produce liquidfoamable composition 160 which is then dispensed inbowl 110. This type of mixhead and the use thereof is conventional in the art and within the purview of a person skilled in the art. It is of course possible to use other mixheads such as low pressure mixheads and the like. - Once liquid
foamable composition 160 has been dispensed inbowl 110,mixhead 165 is withdrawn andlid 105 is swung to the close position and engaged tobowl 110. - Once
lid 105 andbowl 110 are closed, liquidfoamable composition 160 expands to substantially completely fill the mold cavity. While not specifically shown in the Figures, it is of course conventional to designmold 100 to include various vent portions to allow expansion gases which are generated during expansion of liquidfoamable composition 160 after the mold is closed to escape from the mold cavity. The design in use of such vent techniques is conventional and within the purview of a person skilled in the art. - After completion of expansion of liquid
foamable composition 160, a foam part is produced which may be conventionally demolded by openinglid 105 and demolding afoam element 200. Specifically illustratedfoam element 200 is a vehicle cushion having an upper or A-surface 205 disposed inA-surface 205 are a series oftrenches 210 corresponding toridges 115 andbowl 110 ofmold 100. These trenches contain one or more touch fasteners (not shown). - Also disposed on
A-surface 205 is a V-shapedchannel 220 having anapex region 225 and aU-shaped channel 230 having anapex region 235. As will be apparent to those of skill in the art, V-shaped 220 corresponds to V-shapedridge 120 inbowl 110 ofmold 100. Further,U-shaped channel 230 corresponds toU-shaped ridge 130 inbowl 110 ofmold 100. V-shapedchannel 220 andU-shaped channel 230 are interconnected by asaddle channel 240 having afirst channel portion 245 connected toapex region 225 and asecond channel portion 247 connected toapex region 235.First channel portion 245 andsecond channel portion 247 are interconnected by acentral channel portion 249 which has a surface thereof exposed on the underside offoam element 200. - As will be apparent to those of skill in the art, each of V-shaped
channel 220,U-shaped channel 230 andsaddle channel 240 are coded with the substantially fluid impermeable coating applied to portions ofmold 100 in FIG. 2. Thus, in essence, a network of channels is formed on the A-surface offoam element 200 which is in communication with the undersigned offoam element 200. Each of these channels is coded with a material which prevents diffusion of gas into the foam element. The surface ofcentral channel portion 249 which is exposed to the undersigned of foam element may then be connected to a source of air (or other fluid). The temperature of the air will be controlled elsewhere and the air may simply be pumped throughfoam element 200 to provide increased comfort and convenience to the occupant of the seat. - With reference to FIG. 6, there is illustrated a perspective view of a bowl110 a which is preferred for use in producing a foam element to be used for a seat back. The principal difference in design of bowl 110 a from that of bowl 110 (FIG. 1) is that bowl 110 a comprises an H-shaped ridge 120 a having a
central region 125 a. The lid (not shown) to be used with bowl 110 a would be modified fromlid 105 in Figure to include a post (not shown) have a terminal end which would about withcentral region 125 a when the mold was closed. - While this invention has been described with reference to illustrative embodiments and examples, the description is not intended to be construed in a limiting sense. Thus, various modifications of the illustrative embodiments, as well as other embodiments of the invention, will be apparent to persons skilled in the art upon reference to this description. For example, while not specifically illustrated in the attached drawings, it is possible (and preferred) to pre-treat the interior surface of the of lid and bowl of the mold with a conventional mold release agent which facilitates post-production de-molding of the foam element. Further, it is possible to omit or modify the trim cover fastener system depicted in the attached drawings. Still further, it is possible to incorporate a frame element (e.g., made of metal or substantially rigid foam), vehicular attachment means and the like in the mold prior to dispensing the liquid foamable composition with the result that these elements, if present, are at least partially molded into the final product. Still further, while not specifically illustrated in the attached drawings, it is possible and, in some cases preferred, to secure a perforated liner (such as a ventilation scrim commercially available from Diversified Products) on the surface of the foam comprises the venting channels to diffuse gas (or other fluid) flow from the channels and away from the foam element. The perforated liner may be adhered to the foam element, molded into the foam element or otherwise secured to the foam element in a conventional manner. It is therefore contemplated that the appended claims will cover any such modifications or embodiments.
- All publications, patents and patent applications referred to herein are incorporated by reference in their entirety to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated by reference in its entirety.
Claims (44)
1. A foam element comprising an isocyanate-based foam matrix having surface, at least a portion of the surface comprising at least one channel having a channel surface, the channel surface being coated with a substantially fluid impermeable material.
2. The foam element defined in claim 1 , wherein the foam matrix comprises an isocyanate-based foam matrix.
3. The foam element defined in claim 1 , wherein the substantially fluid impermeable coating comprises an elastomeric coating.
4. The foam element defined in claim 1 , wherein the substantially fluid impermeable coating comprises a thickness of less than or equal to about 1.5 mm.
5. The foam element defined in claim 1 , wherein the substantially fluid impermeable coating comprises a thickness in the range of from about 0.01 mm to about 1.5 mm.
6. The foam element defined in claim 1 , wherein the substantially fluid impermeable coating comprises a thickness in the range of from about 0.01 mm to about 1.0 mm.
7. The foam element defined in claim 1 , further comprising a passageway in communication with the at least one channel and with another surface of the foam element.
8. The foam element defined in claim 7 , wherein the surface comprises at least two channels.
9. The foam element defined in claim 8 , wherein the two channels are interconnected by the passageway.
10. The foam element defined in claim 7 , wherein the passageway comprises a passageway surface which is coated with a substantially fluid impermeable material.
11. The foam element defined in claim 1 , wherein the substantially fluid impermeable material is substantially non-cellular.
12. The foam element defined in claim 1 , wherein the substantially fluid impermeable material is produced in situ in a mold used to produce the foam matrix.
13. The foam element defined in claim 1 , wherein the substantially fluid impermeable material is derived from an emulsion composition comprising polymer particles.
14. The foam element defined in claim 1 , wherein the foam matrix comprises a polyurethane foam.
15. The foam element defined in claim 1 , further comprising a diffuser element secured to the foam matrix and covering at least a portion of the at least one channel.
16. The foam element defined in claim 1 , further comprising a trim cover over at least the surface of the foam element.
17. The foam element defined in claim 1 , further comprising a frame element which is at least partially embedded in the foam matrix.
18. A vehicular seat comprising the foam element defined in claim 1 .
19. A vehicular seat cushion comprising the foam element defined in claim 1 .
20. A vehicular seat backrest comprising the foam element defined in claim 1 .
21. A vehicular trim element comprising the foam element defined in claim 1 .
22. A vehicular headliner element comprising the foam element defined in claim 1 .
23. A construction panel comprising the foam element defined in claim 1 .
24. A mattress comprising the foam element defined in claim 1 .
25. A process for producing a foam element in a mold comprising a first mold half and a second mold, the first mold half comprising at least one ridge element, the first mold half and the second mold half being engageable to define a mold cavity, the process comprising the steps of:
(i) substantially completely covering the at least one ridge element with a substantially fluid impermeable material;
(ii) dispensing a liquid foamable composition in at least one of the first mold half and the second mold half;
(iii) closing the first mold half and the second mold half;
(iv) expanding the liquid foamable composition to substantially completely fill the mold cavity to produce the foam element.
26. The process defined in claim 25 , wherein the substantially fluid impermeable material comprises an elastomeric coating.
27. The process defined in claim 25 , wherein the substantially fluid impermeable material is substantially non-cellular.
28. The process defined in claim 25 , wherein Step (i) comprises applying substantially fluid impermeable material at a thickness of less than or equal to about 1.5 mm.
29. The process defined in claim 25 , wherein Step (i) comprises applying substantially fluid impermeable material at a thickness in the range of from about 0.01 mm about 1.5 mm.
30. The process defined in claim 25 , wherein Step (i) comprises applying substantially fluid impermeable material at a thickness in the range of from about 0.01 mm about 1.0 mm.
31. The process defined in claim 25 , wherein Step (i) comprises spraying a liquid material.
32. The process defined in claim 25 , wherein the liquid material comprises an emulsion composition comprising particles dispersed in a liquid material.
33. The process defined in claim 25 , wherein Step (ii) comprises dispensing the liquid foamable composition in the first mold half.
34. The process defined in claim 25 , wherein the second mold half comprises at least one post which substantially abuts with at least a portion of the at least one ridge element when the first mold half and the second mold half are engaged, and Step (i) further comprises substantially completely covering the at least one post with the substantially fluid impermeable material.
35. The process defined in claim 25 , wherein the liquid foamable composition comprises an isocyanate-based foam forming reaction mixture.
36. The process defined in claim 25 , wherein the liquid foamable composition comprises a polyurethane foam forming reaction mixture.
37. The process defined in claim 25 , comprising the further step of securing the a diffuser element to foam element to cover at least a portion of a channel formed by the at least one ridge element.
38. The process defined in claim 37 , wherein the securing step is performed during Step (iv).
39. The process defined in claim 37 , wherein the securing step is performed after Step (iv).
40. The process defined in claim 25 , comprising the further step of securing a trim cover over at least a portion of the foam element.
41. The process defined in claim 25 , comprising the further step of applying a mold release agent to one or both of the first mold half and the second mold half.
42. The process defined in claim 41 , wherein the mold release agent is applied prior to Step (i).
43. The process defined in claim 25 , wherein, prior to Step (iii), a frame element is disposed in at least one of the first mold half and the second mold half.
44. A mold for producing a foam element, the mold comprising a first mold half and a second mold, the first mold half and the second mold half being engageable to define a mold cavity, the first mold half comprising at least one ridge element and the second mold half comprising at least one post, the least one ridge element and the at least one post oriented to substantially abut one another upon engagement of the first mold half and the second half.
Priority Applications (2)
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US10/689,069 US20040082674A1 (en) | 2000-08-04 | 2003-10-21 | Foam element having molded gas passageways and process for production thereof |
US11/535,686 US7879434B2 (en) | 2000-08-04 | 2006-09-27 | Foam element having molded gas passageways |
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US63328000A | 2000-08-04 | 2000-08-04 | |
US10/689,069 US20040082674A1 (en) | 2000-08-04 | 2003-10-21 | Foam element having molded gas passageways and process for production thereof |
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US63328000A Continuation | 2000-08-04 | 2000-08-04 |
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US11/535,686 Continuation US7879434B2 (en) | 2000-08-04 | 2006-09-27 | Foam element having molded gas passageways |
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US11/535,686 Expired - Fee Related US7879434B2 (en) | 2000-08-04 | 2006-09-27 | Foam element having molded gas passageways |
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US11/535,686 Expired - Fee Related US7879434B2 (en) | 2000-08-04 | 2006-09-27 | Foam element having molded gas passageways |
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EP (1) | EP1307328A2 (en) |
JP (1) | JP2004505795A (en) |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050019544A1 (en) * | 2003-04-30 | 2005-01-27 | Stacey Roberta L. | Foam seat element |
EP1707335A1 (en) * | 2005-03-30 | 2006-10-04 | IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. | Method for producing a cushioning pad |
FR2885549A1 (en) * | 2005-05-16 | 2006-11-17 | Faurecia Sieges Automobile | Manufacturing process for foam cushion with T-shaped slot, e.g. for motor vehicle, includes use of mould insert with curved base, removed by rotation |
US20070011853A1 (en) * | 2005-07-13 | 2007-01-18 | Smith Lyle J | System for attaching trim covers to a flexible substrate |
US20080258523A1 (en) * | 2007-04-19 | 2008-10-23 | Hope Global, Division Of Nfa Corp. | Festooned trim clip system and method for attaching festooned clips to a substrate |
US20090064471A1 (en) * | 2007-09-07 | 2009-03-12 | Hope Global, Division Of Nfa Corp. | Low-profile upholstery clip for attaching a bead to a foam substrate |
US20090127912A1 (en) * | 2007-11-19 | 2009-05-21 | Lear Corporation | Vehicle seat assembly having a cushion with a colored coating and method of making the same |
US8998309B2 (en) | 2013-01-10 | 2015-04-07 | Lear Corporation | Vehicle seat assembly having a permeable cushion with a colored coating and method of making the same |
US9834431B2 (en) | 2015-08-28 | 2017-12-05 | Hope Global, Division Of Nfa Corp. | Listing bead for upholstery clips |
US10014384B2 (en) | 2007-02-15 | 2018-07-03 | Sony Corporation | Method for manufacturing insulated gate field effect transistor |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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US7114771B2 (en) | 2004-05-25 | 2006-10-03 | Amerigon, Inc. | Climate controlled seat |
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US7827805B2 (en) | 2005-03-23 | 2010-11-09 | Amerigon Incorporated | Seat climate control system |
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US7640754B2 (en) | 2006-12-14 | 2010-01-05 | Amerigon Incorporated | Insert duct piece for thermal electric module |
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US8835018B2 (en) * | 2007-04-25 | 2014-09-16 | Semiconductor Energy Laboratory Co., Ltd. | Organic compound, anthracene derivative, and light-emitting element, light-emitting device, and electronic device in which the anthracene derivative is used |
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US9662962B2 (en) | 2013-11-05 | 2017-05-30 | Gentherm Incorporated | Vehicle headliner assembly for zonal comfort |
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JP6652493B2 (en) | 2014-02-14 | 2020-02-26 | ジェンサーム インコーポレイテッドGentherm Incorporated | Conductive and convective temperature control sheet |
CN106458070B (en) | 2014-05-09 | 2020-10-16 | 金瑟姆股份公司 | Climate control assembly |
US11639816B2 (en) | 2014-11-14 | 2023-05-02 | Gentherm Incorporated | Heating and cooling technologies including temperature regulating pad wrap and technologies with liquid system |
US11857004B2 (en) | 2014-11-14 | 2024-01-02 | Gentherm Incorporated | Heating and cooling technologies |
CN107251247B (en) | 2014-11-14 | 2021-06-01 | 查尔斯·J·柯西 | Heating and cooling techniques |
JP6147798B2 (en) * | 2015-04-24 | 2017-06-14 | 本田技研工業株式会社 | Urethane foam molding production equipment |
US10991869B2 (en) | 2018-07-30 | 2021-04-27 | Gentherm Incorporated | Thermoelectric device having a plurality of sealing materials |
US11152557B2 (en) | 2019-02-20 | 2021-10-19 | Gentherm Incorporated | Thermoelectric module with integrated printed circuit board |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209380A (en) * | 1964-12-31 | 1965-10-05 | Watsky Benjamin | Rigid mattress structure |
US3644168A (en) * | 1970-06-12 | 1972-02-22 | Upjohn Co | Varied density polyisocyanurate foam structure |
US4003113A (en) * | 1971-04-01 | 1977-01-18 | Bulloch Jr Carl Gordon | Method of forming a spring cushion construction |
US4078348A (en) * | 1976-10-18 | 1978-03-14 | Michael Rothman | Construction panels for structural support systems |
US4294880A (en) * | 1978-08-11 | 1981-10-13 | The Toyo Rubber Industry Co., Ltd. | Foamed polyurethane articles with skin and a method for producing the same |
US4524102A (en) * | 1984-02-15 | 1985-06-18 | Fritz Hostettler | Microcellular polyurethane foams having integral skin |
US4651494A (en) * | 1984-06-01 | 1987-03-24 | Wagoner John D Van | Insulation panel for a roofing system or the like |
US5085487A (en) * | 1987-06-02 | 1992-02-04 | Schaumstoffwerk Greiner Gesellschaft Mbh | Seat with foamed plastic padding and process for its manufacture |
US5143667A (en) * | 1989-08-17 | 1992-09-01 | Ikeda Bussan Co., Ltd. | Skin covered foamed plastic seat with holes |
US5400490A (en) * | 1993-02-26 | 1995-03-28 | Woodbridge Foam Corporation | Method of molding a seat having anchoring means connected thereto |
US5403645A (en) * | 1993-04-01 | 1995-04-04 | General Motors Corporation | Molded-in cloth insert door trim |
US5463785A (en) * | 1994-06-27 | 1995-11-07 | Mckeel; William H. | Combination airflow infant pad and toddler pillow |
US5597200A (en) * | 1993-11-22 | 1997-01-28 | Amerigon, Inc. | Variable temperature seat |
US5662996A (en) * | 1992-05-18 | 1997-09-02 | Recticel | Method for manufacturing self-supporting synthetic trim parts and thus manufactured trim parts |
US5750246A (en) * | 1995-03-10 | 1998-05-12 | Kurashiki Boseki Kabushiki Kaisha | Facing for seat |
US5927817A (en) * | 1997-08-27 | 1999-07-27 | Lear Corporation | Ventilated vehicle seat assembly |
US6197403B1 (en) * | 1998-04-06 | 2001-03-06 | Hp Pelzer (Automotive Systems), Inc. | Integral sound absorber and water deflector door panel |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1310373A (en) * | 1970-11-03 | 1973-03-21 | Mehlman R | Pads for pillows and mattresses and upholstery |
FR2125641A5 (en) * | 1971-02-15 | 1972-09-29 | Chanet Et Cie | Surface coating of foams - and porous materials, by halogenated elastomers |
-
2001
- 2001-08-03 CA CA002417993A patent/CA2417993A1/en not_active Abandoned
- 2001-08-03 AU AU2001281618A patent/AU2001281618A1/en not_active Abandoned
- 2001-08-03 EP EP01960001A patent/EP1307328A2/en not_active Withdrawn
- 2001-08-03 JP JP2002517287A patent/JP2004505795A/en active Pending
- 2001-08-03 WO PCT/CA2001/001124 patent/WO2002011968A2/en not_active Application Discontinuation
-
2003
- 2003-10-21 US US10/689,069 patent/US20040082674A1/en not_active Abandoned
-
2006
- 2006-09-27 US US11/535,686 patent/US7879434B2/en not_active Expired - Fee Related
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209380A (en) * | 1964-12-31 | 1965-10-05 | Watsky Benjamin | Rigid mattress structure |
US3644168A (en) * | 1970-06-12 | 1972-02-22 | Upjohn Co | Varied density polyisocyanurate foam structure |
US4003113A (en) * | 1971-04-01 | 1977-01-18 | Bulloch Jr Carl Gordon | Method of forming a spring cushion construction |
US4078348A (en) * | 1976-10-18 | 1978-03-14 | Michael Rothman | Construction panels for structural support systems |
US4294880A (en) * | 1978-08-11 | 1981-10-13 | The Toyo Rubber Industry Co., Ltd. | Foamed polyurethane articles with skin and a method for producing the same |
US4524102A (en) * | 1984-02-15 | 1985-06-18 | Fritz Hostettler | Microcellular polyurethane foams having integral skin |
US4651494A (en) * | 1984-06-01 | 1987-03-24 | Wagoner John D Van | Insulation panel for a roofing system or the like |
US5085487A (en) * | 1987-06-02 | 1992-02-04 | Schaumstoffwerk Greiner Gesellschaft Mbh | Seat with foamed plastic padding and process for its manufacture |
US5143667A (en) * | 1989-08-17 | 1992-09-01 | Ikeda Bussan Co., Ltd. | Skin covered foamed plastic seat with holes |
US5662996A (en) * | 1992-05-18 | 1997-09-02 | Recticel | Method for manufacturing self-supporting synthetic trim parts and thus manufactured trim parts |
US5400490A (en) * | 1993-02-26 | 1995-03-28 | Woodbridge Foam Corporation | Method of molding a seat having anchoring means connected thereto |
US5403645A (en) * | 1993-04-01 | 1995-04-04 | General Motors Corporation | Molded-in cloth insert door trim |
US5597200A (en) * | 1993-11-22 | 1997-01-28 | Amerigon, Inc. | Variable temperature seat |
US5463785A (en) * | 1994-06-27 | 1995-11-07 | Mckeel; William H. | Combination airflow infant pad and toddler pillow |
US5750246A (en) * | 1995-03-10 | 1998-05-12 | Kurashiki Boseki Kabushiki Kaisha | Facing for seat |
US5927817A (en) * | 1997-08-27 | 1999-07-27 | Lear Corporation | Ventilated vehicle seat assembly |
US6197403B1 (en) * | 1998-04-06 | 2001-03-06 | Hp Pelzer (Automotive Systems), Inc. | Integral sound absorber and water deflector door panel |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050019544A1 (en) * | 2003-04-30 | 2005-01-27 | Stacey Roberta L. | Foam seat element |
US20080265652A1 (en) * | 2004-04-30 | 2008-10-30 | Woodbridge Foam Corporation | Foam seat element |
EP1707335A1 (en) * | 2005-03-30 | 2006-10-04 | IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. | Method for producing a cushioning pad |
WO2006103271A1 (en) * | 2005-03-30 | 2006-10-05 | Iee International Electronics & Engineering S.A. | Method for producing a cushioning pad |
FR2885549A1 (en) * | 2005-05-16 | 2006-11-17 | Faurecia Sieges Automobile | Manufacturing process for foam cushion with T-shaped slot, e.g. for motor vehicle, includes use of mould insert with curved base, removed by rotation |
US20070011853A1 (en) * | 2005-07-13 | 2007-01-18 | Smith Lyle J | System for attaching trim covers to a flexible substrate |
US7487575B2 (en) | 2005-07-13 | 2009-02-10 | Lyle J Smith | System for attaching trim covers to a flexible substrate |
US10014384B2 (en) | 2007-02-15 | 2018-07-03 | Sony Corporation | Method for manufacturing insulated gate field effect transistor |
US11289581B2 (en) | 2007-02-15 | 2022-03-29 | Sony Corporation | Method for manufacturing insulated gate field effect transistor |
US10505008B2 (en) | 2007-02-15 | 2019-12-10 | Sony Corporation | Method for manufacturing insulated gate field effect transistor |
US20080258523A1 (en) * | 2007-04-19 | 2008-10-23 | Hope Global, Division Of Nfa Corp. | Festooned trim clip system and method for attaching festooned clips to a substrate |
US8091184B2 (en) | 2007-04-19 | 2012-01-10 | Hope Global, Division Of Nfa Corp. | Festooned trim clip system and method for attaching festooned clips to a substrate |
US20090064471A1 (en) * | 2007-09-07 | 2009-03-12 | Hope Global, Division Of Nfa Corp. | Low-profile upholstery clip for attaching a bead to a foam substrate |
US8099837B2 (en) | 2007-09-07 | 2012-01-24 | Hope Global, Division Of Nfa Corporation | Low-profile upholstery clip for attaching a bead to a foam substrate |
US20090127912A1 (en) * | 2007-11-19 | 2009-05-21 | Lear Corporation | Vehicle seat assembly having a cushion with a colored coating and method of making the same |
US8998309B2 (en) | 2013-01-10 | 2015-04-07 | Lear Corporation | Vehicle seat assembly having a permeable cushion with a colored coating and method of making the same |
US9834431B2 (en) | 2015-08-28 | 2017-12-05 | Hope Global, Division Of Nfa Corp. | Listing bead for upholstery clips |
US10508019B2 (en) | 2015-08-28 | 2019-12-17 | Hope Global, Division Of Nfa Corp. | Listing bead for upholstery clips |
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US7879434B2 (en) | 2011-02-01 |
JP2004505795A (en) | 2004-02-26 |
CA2417993A1 (en) | 2002-02-14 |
WO2002011968A3 (en) | 2002-04-25 |
US20070248789A1 (en) | 2007-10-25 |
WO2002011968A2 (en) | 2002-02-14 |
EP1307328A2 (en) | 2003-05-07 |
AU2001281618A1 (en) | 2002-02-18 |
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