CA2502658C - Waterproofed and breathable sole for shoes and manufacturing method thereof - Google Patents
Waterproofed and breathable sole for shoes and manufacturing method thereof Download PDFInfo
- Publication number
- CA2502658C CA2502658C CA2502658A CA2502658A CA2502658C CA 2502658 C CA2502658 C CA 2502658C CA 2502658 A CA2502658 A CA 2502658A CA 2502658 A CA2502658 A CA 2502658A CA 2502658 C CA2502658 C CA 2502658C
- Authority
- CA
- Canada
- Prior art keywords
- membrane
- tread
- dispersion
- solution
- sole
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000010985 leather Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 27
- 239000006185 dispersion Substances 0.000 claims description 18
- 229920000642 polymer Polymers 0.000 claims description 13
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 5
- 150000002513 isocyanates Chemical class 0.000 claims description 5
- 238000004132 cross linking Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002318 adhesion promoter Substances 0.000 claims description 2
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 2
- 238000001035 drying Methods 0.000 claims 1
- 238000007650 screen-printing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- -1 i.e. Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/12—Special watertight footwear
- A43B7/125—Special watertight footwear provided with a vapour permeable member, e.g. a membrane
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/06—Footwear with health or hygienic arrangements ventilated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/14—Multilayered parts
- B29D35/142—Soles
Abstract
A waterproofed and breathable sole (10) for shoes, characterized in that it comprises a tread (11) made of leather or similar breathable and water-permeable material, which is coverad at least partially in an upward region by a membrane (12) made of a material that is breathable and waterproof and is joined perimetrically to the tread (11) by means of a screen-printed sealing ring (14).
Description
WATERPROOFED AND BREATHABLE SOLE FOR SHOES AND
MANUFACTURING METHOD THEREOF
Technical Field The present invention relates to an improved waterproofed and breathable sole for shoes and to the method for manufacturing it.
Background Art It is known that the main problem observed in using shoes . with an ordinary sole made of natural material such as leather or equivalents is constituted by wet walking areas.
When rain and bad weather make streets wet and slippery, it is in fact not advisable to use shoes with leather soles, since leather, just because it is breathable and healthy for the foot, is not waterproof but in fact absorbs water.
The thinner the. leather, the higher the rate at which it becomes impregnated with water or moisture, ultimately wetting the user's foot.
Accordingly, the use of soles with a leather tread is constrained by weather conditions, and for this reason shoes made of this type of material are mainly provided by manufacturers in the summer collections in countries where the dry season is more substantial.
A sole (disclosed in US 5,598,644 and EP 0 619 959) has been devised which comprises a tread made. of leather or similar material that is at least partially covered in an upward region by a membrane made of a material that is vapor-permeable and waterproof.
The waterproof and breathable membrane is fixed to the sole by means of adhesive arranged in spots, and a perimetric sealing ring made of polymeric material, for example polyurethane, is injected in a mold to assemble all the parts.
Although this sole is a considerable technical step forward, in that it renders the leather tread waterproof, it has in any case shown some limitations.
MANUFACTURING METHOD THEREOF
Technical Field The present invention relates to an improved waterproofed and breathable sole for shoes and to the method for manufacturing it.
Background Art It is known that the main problem observed in using shoes . with an ordinary sole made of natural material such as leather or equivalents is constituted by wet walking areas.
When rain and bad weather make streets wet and slippery, it is in fact not advisable to use shoes with leather soles, since leather, just because it is breathable and healthy for the foot, is not waterproof but in fact absorbs water.
The thinner the. leather, the higher the rate at which it becomes impregnated with water or moisture, ultimately wetting the user's foot.
Accordingly, the use of soles with a leather tread is constrained by weather conditions, and for this reason shoes made of this type of material are mainly provided by manufacturers in the summer collections in countries where the dry season is more substantial.
A sole (disclosed in US 5,598,644 and EP 0 619 959) has been devised which comprises a tread made. of leather or similar material that is at least partially covered in an upward region by a membrane made of a material that is vapor-permeable and waterproof.
The waterproof and breathable membrane is fixed to the sole by means of adhesive arranged in spots, and a perimetric sealing ring made of polymeric material, for example polyurethane, is injected in a mold to assemble all the parts.
Although this sole is a considerable technical step forward, in that it renders the leather tread waterproof, it has in any case shown some limitations.
A first limitation arises from the very nature of leather, which as mentioned is a breathable material, but its breathability is not so high as to dissipate in a short time all the heat and vapor that form inside the shoe during use.
A second limitation is due to the fact that as mentioned the seal is produced by injection-molding a ring of plastic material.
This process requires the provision of thick seals and accordingly increases the rigidity of the sole, so that some types of shoe in which high flexibility is required, such as women's shoes, are difficult to manufacture.
The high cost of this technology (provision of an aluminum mold for each shoe model and size to be produced) is not inconsequential.
An attempt has been made to obviate the problem of thicknesses by using, for the perimetric seal, films made of thermoplastic polyurethane material with a thickness of 200 microns.
Although this method allows to obtain qualitatively acceptable products, it is extremely expensive, since it is almost entirely manual.
Disclosure of the Invention The aim of the present invention is to provide a sole, and the method for manufacturing it, that solve the drawbacks noted above in known types of waterproofed breathable shoes with a tread made of leather or equivalent material.
A consequent primary object is to provide a sole that can be thin and flexible.
Another object is to increase breathability.
Another important object is to provide a sole that is characterized by the possibility of high flexibility in production.
Another object is to increase user comfort.
Another object is to provide a sole that can be manufactured at low cost and therefore can be sold at a competitive price.
Another object is to provide a sole that can be manufactured with known equipment and methods.
This aim and these and other objects that will become better apparent hereinafter are achieved by a waterproofed breathable sole for shoes, characterized in that it comprises a tread made of leather or similar breathable and water-permeable material, which is covered at least partially in an upward region by a membrane made of a material that is breathable and waterproof and is joined perimetrically to the tread by means of a screen-printed sealing ring.
In one aspect, the invention provides a waterproofed breathable sole for shoes, comprising a tread made of leather or breathable and water-permeable material, which is covered at least partially in an upward region by a membrane made of a material that is breathable and waterproof, wherein said membrane is joined perimetrically to the tread by way of a screen-printed sealing ring made of a solution or dispersion of polymer that has a dry residue of at least 60% by weight with the addition of setting agents.
Brief description of the drawings Further characteristics and advantages of the invention will become better apparent from the detailed description of some embodiments thereof, illustrated by way of non-limitative example in the accompanying drawings, wherein:
Figure 1 is a schematic sectional view of the sole according to the invention;
Figure 2 is a schematic sectional view illustrating a step of the process for manufacturing the sole of Figure 1;
Figure 3 is a schematic sectional view illustrating a step of the manufacturing process that follows the step of Figure 2.
Ways to ca ing out the Invention With reference to Figure 1 cited above, an improved waterproofed and breathable sole for shoes is generally designated by the reference numeral 10 3a and comprises a tread 11 made of leather or similar breathable and water-permeable material (such as leather, open-cell synthetic material, et cetera), covered in an upward region by a membrane 12 that is impermeable to water and vapor-permeable (breathable) and is preferably made of expanded polytetrafluoroethylene (PTFE).
The membrane 12, which in this case has no support of any kind, is' provided in thicknesses that can vary between 5 and 40 microns.
The membrane 12 is conveniently spaced perimetrically from the edge of the tread 11.
The membrane 12 is preferably fixed to the tread 11 by means of adhesive .13 in spots and a perimetric sealing ring 14 is provided by screen printing.
The process for manufacturing the ring 14 provides for a first step for preparing a frame 15, which is constituted by a fabric with a sufficiently wide mesh (12 to 43 threads per centimeter), such as to allow the passage of a solution or dispersion of polymer, in a preferred embodiment polyurethane, which has a dry residue of approximately or substantially at least 60%.
This solution or dispersion is per se known and commercially available.
This material, in order to allow greater resistance to temperatures of at least 5 0-60 C and ensure its chemical and structural integrity (in particular its resistance to hydrolysis and aging stability), receives the addition of suitable cross-linking agents, i.e., agents that facilitate the cross-linking reaction and are therefore capable of reacting with the functional groups that are still free inside the polyurethane.
These agents can be, for example, isocyanates (3-5%) suitably catalyzed to increase their reactivity, for example by means of amines.
During this preparatory step, it is also possible to cover some regions of the frame by way of a photoengraving process, in the regions that must not be covered by the solution, for example the ones subsequently affected or covered by the membrane 12, naturally with the exception of the regions that correspond to its perimetric regions or edges.
The membrane 12, already treated with spots 13 of glue, is then bonded to the tread 11 by hot pressing by means of a hot press (not shown in the figures).
The next steps (Figure 2) are to arrange the tread 11 under the frame 15 and pour (Figure 3) said solution or dispersion of polymer onto said frame 15.
Penetration of the material through the mesh of the frame 15 is facilitated by using a doctor.
The material, which is in the fluid state, due to the evaporation of the solvent phase, leaves the solid phase contained therein deposited on the tread 11 and on the membrane 12, forming the sealing ring 14.
A second limitation is due to the fact that as mentioned the seal is produced by injection-molding a ring of plastic material.
This process requires the provision of thick seals and accordingly increases the rigidity of the sole, so that some types of shoe in which high flexibility is required, such as women's shoes, are difficult to manufacture.
The high cost of this technology (provision of an aluminum mold for each shoe model and size to be produced) is not inconsequential.
An attempt has been made to obviate the problem of thicknesses by using, for the perimetric seal, films made of thermoplastic polyurethane material with a thickness of 200 microns.
Although this method allows to obtain qualitatively acceptable products, it is extremely expensive, since it is almost entirely manual.
Disclosure of the Invention The aim of the present invention is to provide a sole, and the method for manufacturing it, that solve the drawbacks noted above in known types of waterproofed breathable shoes with a tread made of leather or equivalent material.
A consequent primary object is to provide a sole that can be thin and flexible.
Another object is to increase breathability.
Another important object is to provide a sole that is characterized by the possibility of high flexibility in production.
Another object is to increase user comfort.
Another object is to provide a sole that can be manufactured at low cost and therefore can be sold at a competitive price.
Another object is to provide a sole that can be manufactured with known equipment and methods.
This aim and these and other objects that will become better apparent hereinafter are achieved by a waterproofed breathable sole for shoes, characterized in that it comprises a tread made of leather or similar breathable and water-permeable material, which is covered at least partially in an upward region by a membrane made of a material that is breathable and waterproof and is joined perimetrically to the tread by means of a screen-printed sealing ring.
In one aspect, the invention provides a waterproofed breathable sole for shoes, comprising a tread made of leather or breathable and water-permeable material, which is covered at least partially in an upward region by a membrane made of a material that is breathable and waterproof, wherein said membrane is joined perimetrically to the tread by way of a screen-printed sealing ring made of a solution or dispersion of polymer that has a dry residue of at least 60% by weight with the addition of setting agents.
Brief description of the drawings Further characteristics and advantages of the invention will become better apparent from the detailed description of some embodiments thereof, illustrated by way of non-limitative example in the accompanying drawings, wherein:
Figure 1 is a schematic sectional view of the sole according to the invention;
Figure 2 is a schematic sectional view illustrating a step of the process for manufacturing the sole of Figure 1;
Figure 3 is a schematic sectional view illustrating a step of the manufacturing process that follows the step of Figure 2.
Ways to ca ing out the Invention With reference to Figure 1 cited above, an improved waterproofed and breathable sole for shoes is generally designated by the reference numeral 10 3a and comprises a tread 11 made of leather or similar breathable and water-permeable material (such as leather, open-cell synthetic material, et cetera), covered in an upward region by a membrane 12 that is impermeable to water and vapor-permeable (breathable) and is preferably made of expanded polytetrafluoroethylene (PTFE).
The membrane 12, which in this case has no support of any kind, is' provided in thicknesses that can vary between 5 and 40 microns.
The membrane 12 is conveniently spaced perimetrically from the edge of the tread 11.
The membrane 12 is preferably fixed to the tread 11 by means of adhesive .13 in spots and a perimetric sealing ring 14 is provided by screen printing.
The process for manufacturing the ring 14 provides for a first step for preparing a frame 15, which is constituted by a fabric with a sufficiently wide mesh (12 to 43 threads per centimeter), such as to allow the passage of a solution or dispersion of polymer, in a preferred embodiment polyurethane, which has a dry residue of approximately or substantially at least 60%.
This solution or dispersion is per se known and commercially available.
This material, in order to allow greater resistance to temperatures of at least 5 0-60 C and ensure its chemical and structural integrity (in particular its resistance to hydrolysis and aging stability), receives the addition of suitable cross-linking agents, i.e., agents that facilitate the cross-linking reaction and are therefore capable of reacting with the functional groups that are still free inside the polyurethane.
These agents can be, for example, isocyanates (3-5%) suitably catalyzed to increase their reactivity, for example by means of amines.
During this preparatory step, it is also possible to cover some regions of the frame by way of a photoengraving process, in the regions that must not be covered by the solution, for example the ones subsequently affected or covered by the membrane 12, naturally with the exception of the regions that correspond to its perimetric regions or edges.
The membrane 12, already treated with spots 13 of glue, is then bonded to the tread 11 by hot pressing by means of a hot press (not shown in the figures).
The next steps (Figure 2) are to arrange the tread 11 under the frame 15 and pour (Figure 3) said solution or dispersion of polymer onto said frame 15.
Penetration of the material through the mesh of the frame 15 is facilitated by using a doctor.
The material, which is in the fluid state, due to the evaporation of the solvent phase, leaves the solid phase contained therein deposited on the tread 11 and on the membrane 12, forming the sealing ring 14.
5 The assembly constituted by the tread 11, the membrane 12 and the sealing ring 14, which corresponds to Figure 1, is removed and dried.
After forming the ring 14, it is possible to perform a further heating step, substantially at 60-80 C, in order to accelerate cross-linking.
This heating step can be alternative to, or combined with, said step for io addition of isocyanate (an agent that facilitates cross-linking).
With this technology it is possible to obtain films of a chosen constant and reproducible thickness (on the order of 100-500 microns).
The amount of fluid deposited is changed by varying the number of threads per centimeter of the frame 15.
It is possible to provide in alternative embodiments offthe invention the prior application to the tread 11 of adhesion promoters, again constituted by dispersions or solutions of polyurethane polymers, which however have a low viscosity (less than 600 centipoises, according to the Brooksfield method), i.e., are capable of penetrating through the fibers of the leather itself.
In still other alternative embodiments, it is possible to use polyurethanes in a solution or dispersion having a low relative molecular mass.
In this case it is also convenient to provide an addition of a cross-linking agent such as catalyzed isocyanate, in order to block the reversibility, of the process due to the temperature.
Another embodiment can comprise the application of multiple layers of polymer dispersion in order to ensure the continuity of the film that forms the ring 14.
In practice it has been found that the intended aim and objects of the present invention have been achieved.
After forming the ring 14, it is possible to perform a further heating step, substantially at 60-80 C, in order to accelerate cross-linking.
This heating step can be alternative to, or combined with, said step for io addition of isocyanate (an agent that facilitates cross-linking).
With this technology it is possible to obtain films of a chosen constant and reproducible thickness (on the order of 100-500 microns).
The amount of fluid deposited is changed by varying the number of threads per centimeter of the frame 15.
It is possible to provide in alternative embodiments offthe invention the prior application to the tread 11 of adhesion promoters, again constituted by dispersions or solutions of polyurethane polymers, which however have a low viscosity (less than 600 centipoises, according to the Brooksfield method), i.e., are capable of penetrating through the fibers of the leather itself.
In still other alternative embodiments, it is possible to use polyurethanes in a solution or dispersion having a low relative molecular mass.
In this case it is also convenient to provide an addition of a cross-linking agent such as catalyzed isocyanate, in order to block the reversibility, of the process due to the temperature.
Another embodiment can comprise the application of multiple layers of polymer dispersion in order to ensure the continuity of the film that forms the ring 14.
In practice it has been found that the intended aim and objects of the present invention have been achieved.
The sole has the qualitative characteristics of leather soles, particularly breathability, together with the qualitative characteristics of soles made of rubber or synthetic material, particularly waterproofness, and all this is achieved with reduced thicknesses by virtue of the provision of the perimetric seal by screen printing.
Although the principle of screen printing is per se known, it is generally exclusively used to provide decorative details on items of clothing and shoes.
Practical tests have demonstrated that the method, suitably adapted as io described above, can be used conveniently as a means for providing a perimetric seal of very low thickness between the membrane 12 and the tread 11.
The sole 10 can therefore be provided in a thin and flexible form and can be used for any shoe design, and also for women's shoes.
1s It should be noted that said sole can be manufactured without particular difficulties with a manufacturing process that is functionally more flexible than the current one.
The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims..
20 All the details may further be replaced with other technically equivalent.
elements.
In practice, the materials used, so long as they are compatible with the contingent use, as well as the dimensions, may be any according - to requirements.
Although the principle of screen printing is per se known, it is generally exclusively used to provide decorative details on items of clothing and shoes.
Practical tests have demonstrated that the method, suitably adapted as io described above, can be used conveniently as a means for providing a perimetric seal of very low thickness between the membrane 12 and the tread 11.
The sole 10 can therefore be provided in a thin and flexible form and can be used for any shoe design, and also for women's shoes.
1s It should be noted that said sole can be manufactured without particular difficulties with a manufacturing process that is functionally more flexible than the current one.
The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims..
20 All the details may further be replaced with other technically equivalent.
elements.
In practice, the materials used, so long as they are compatible with the contingent use, as well as the dimensions, may be any according - to requirements.
Claims (20)
1. A waterproofed breathable sole for shoes, comprising a tread made of leather or breathable and water-permeable material, which is covered at least partially in an upward region by a membrane made of a material that is breathable and waterproof, wherein said membrane is joined perimetrically to the tread by way of a screen-printed sealing ring made of a solution or dispersion of polymer that has a dry residue of at least 60% by weight with the addition of setting agents.
2. The sole according to claim 1, wherein said membrane is made of expanded polytetrafluoroethylene.
3. The sole according to claim 1 or 2, wherein said membrane is supportless, and is provided with thicknesses between 5 and 40 microns.
4. The sole according to any one of claims 1 to 4, wherein said membrane is spaced perimetrically from an edge of said tread.
5. The sole according to any one of claims 1 to 4, wherein said membrane is fixed to said tread by way of adhesive applied in spots.
6. A method for manufacturing a sole defined in any one of claims 1 to 5, comprising:
preparing a frame that comprises, at least at perimetric regions of the membrane in selected position on the tread, a fabric with a mesh that allows the passage of a solution or dispersion of polymer that has a dry residue of at least 60% by weight with the addition of setting agents;
arranging said membrane on said tread;
placing said tread and said membrane under said frame, pouring said solution or dispersion of polymer onto said frame, and making it penetrate through the mesh of said frame, forming at least one layer of a sealing ring;
removing the assembly constituted by the tread, the membrane and the ring; and drying the assembly.
preparing a frame that comprises, at least at perimetric regions of the membrane in selected position on the tread, a fabric with a mesh that allows the passage of a solution or dispersion of polymer that has a dry residue of at least 60% by weight with the addition of setting agents;
arranging said membrane on said tread;
placing said tread and said membrane under said frame, pouring said solution or dispersion of polymer onto said frame, and making it penetrate through the mesh of said frame, forming at least one layer of a sealing ring;
removing the assembly constituted by the tread, the membrane and the ring; and drying the assembly.
7. The method according to claim 6, wherein said solution or dispersion of polymer that has a dry residue of 60% by weight is a polyurethane solution or dispersion.
8. The method according to claim 6 or 7, further comprising addition to said solution or dispersion of polyurethane polymer that has a dry residue of 60% by weight of cross-linking agents.
9. The method according to claim 8, wherein said cross-linking agents are catalyzed isocyanates.
10. The method according to any one of claims 6 to 9, further comprising a heating step, after the forming of said ring, in order to accelerate the cross-linking of said solution or dispersion of polymer.
11. The method according to claim 10, wherein said heating is performed substantially between 60 °C and 80 °C.
12. The method according to claim 6, comprising a preliminary application, to said tread, of adhesion promoters constituted by dispersions or solutions of polyurethane polymers having a low viscosity so it is capable of penetrating through the fibers of said leather.
13. The method according to claim 6, consisting of the preliminary application, to said tread, of polyurethanes having a low relative molecular mass in a solution or dispersion.
14. The method according to claim 13, wherein it comprises addition to said polyurethanes having a low relative molecular mass in solution or dispersion of cross-linking agents.
15. The method according to claim 14, wherein said cross-linking agents are catalyzed isocyanates.
16. The method according to claim 6, comprising, prior to the arrangement of said membrane on said frame, covering by a photoengraving technique the regions of said frame that are to be left uncovered by said solution or dispersion of polymer.
17. The method according to claim 16, wherein said regions covered by photoengraving are the regions subsequently covered by said membrane, except for the regions that correspond to its edges.
18. The method according to claim 6, wherein the step of arrangement of said membrane on said tread also comprises the gluing of said membrane, treated beforehand with spots of glue, to said tread.
19. The method according to claim 18, wherein said gluing is performed by way of hot pressing.
20. The method according to claim 6, wherein it comprises penetration of said solution or dispersion of polymer through the mesh of said frame using a doctor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITPD2002A000264 | 2002-10-15 | ||
| IT000264A ITPD20020264A1 (en) | 2002-10-15 | 2002-10-15 | WATERPROOF AND BREATHABLE SOLE PERFECTED FOR FOOTWEAR AND ITS REALIZATION PROCESS. |
| PCT/EP2003/011307 WO2004034830A1 (en) | 2002-10-15 | 2003-10-13 | Waterproofed and breathable sole for shoes and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2502658A1 CA2502658A1 (en) | 2004-04-29 |
| CA2502658C true CA2502658C (en) | 2011-07-19 |
Family
ID=32104793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2502658A Expired - Lifetime CA2502658C (en) | 2002-10-15 | 2003-10-13 | Waterproofed and breathable sole for shoes and manufacturing method thereof |
Country Status (43)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20030314A1 (en) * | 2003-12-30 | 2005-06-30 | Geox Spa | WATER-RESISTANT STRATIFORM ARTICLE AND STEAM PERMEABLE |
| DE202006004030U1 (en) | 2006-03-14 | 2006-05-18 | Hidde, Axel R., Dr. Ing. | Shock absorbing pumping vapor permeable waterproof shoe |
| DK2298101T3 (en) * | 2009-08-28 | 2014-12-08 | Geox Spa | Insert for steam-permeable and waterproof soles |
| TW201200050A (en) * | 2010-06-25 | 2012-01-01 | Luo Min Zin Industry Co Ltd | Waterproof and ventilated sole and manufacturing method thereof |
| IT1403989B1 (en) * | 2010-09-28 | 2013-11-08 | Geox Spa | BREATHABLE SHOE WITH WATERPROOF AND BREATHABLE SOLE |
| CN102835784B (en) * | 2011-06-21 | 2015-03-11 | 大力卜股份有限公司 | Vamp support structure and manufacturing method thereof |
| US9232830B2 (en) | 2013-09-19 | 2016-01-12 | Nike, Inc. | Ventilation system for an article of footwear |
| CN112512785A (en) * | 2019-10-15 | 2021-03-16 | 株式会社明和 | Method for manufacturing fabric reinforced rubber packing, method for manufacturing leather packing, fabric reinforced rubber packing and leather packing |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257117A (en) * | 1989-03-30 | 1990-10-17 | Seiko Epson Corp | Production of liquid crystal display panel |
| US5022096A (en) * | 1990-01-18 | 1991-06-11 | W. L. Gore & Associates, Inc. | Waterproof breathable wader |
| IT1263332B (en) * | 1993-03-05 | 1996-08-05 | Pol Scarpe Sportive Srl | WATERPROOF AND BREATHABLE SOLE FOR FOOTWEAR |
| JP2000502924A (en) * | 1996-01-10 | 2000-03-14 | アクゾ ノーベル ナムローゼ フェンノートシャップ | Watertight shoe structure |
| DE29714186U1 (en) * | 1997-08-08 | 1998-12-10 | Junghans Gmbh Geb | Radio clockwork |
| ITPD980157A1 (en) * | 1998-06-25 | 1999-12-25 | Nottington Holding Bv | BREATHABLE AND WATERPROOF SOLE FOR FOOTWEAR |
| IT1302704B1 (en) * | 1998-10-20 | 2000-09-29 | Lineatech S A S Di Morlacchi M | PROCEDURE FOR WATERPROOFING THE SKIN OBTAINED THROUGH THIS PROCEDURE. |
| DE19907288A1 (en) * | 1999-02-22 | 2000-08-24 | Rieter Ag Maschf | teasel |
| JP4128312B2 (en) | 1999-02-24 | 2008-07-30 | 株式会社クラレ | Leather-like sheet with surface napping |
| ITPD20000027A1 (en) * | 2000-01-31 | 2001-07-31 | Nottington Holding Bv | WATERPROOF AND BREATHABLE SOLE PERFECTED FOR FOOTWEAR |
| JP3585813B2 (en) * | 2000-06-22 | 2004-11-04 | Ｔｄｋ株式会社 | Optical information recording medium and manufacturing method thereof |
| EP1174193A1 (en) * | 2000-07-18 | 2002-01-23 | Loctite (R & D) Limited | A dispensing nozzle |
| IT1317371B1 (en) * | 2000-10-19 | 2003-06-16 | Nottington Holding Bv | PERFECTED STRUCTURE OF MIDSOLE FOR WATERPROOF AND BREATHABLE SOLES FOR FOOTWEAR AND WATERPROOF AND BREATHABLE SOLE IN WHICH IT IS |
| IT1317377B1 (en) * | 2000-10-31 | 2003-06-16 | Nottington Holding Bv | BREATHABLE AND WATERPROOF SOLE FOR FOOTWEAR. |
| ITPD20010001A1 (en) * | 2001-01-05 | 2002-07-05 | Nottington Holding Bv | WATERPROOF AND BREATHABLE SOLE FOR FOOTWEAR AND ITS REALIZATION PROCESS. |
| DE10207663C1 (en) * | 2002-02-22 | 2003-08-28 | Gore W L & Ass Gmbh | Footwear upper body has a bonding strip as a seal between the upper material and the lining, with structured bending radii at the upper and lower edges to pass around the curved contour of the footwear |
| US6851205B2 (en) * | 2003-01-29 | 2005-02-08 | Eddie Chen | Shoe having a cup member connected to the bottom of a waterproof breathable lining |
-
2002
- 2002-10-15 IT IT000264A patent/ITPD20020264A1/en unknown
-
2003
- 2003-10-08 MY MYPI20033838A patent/MY137722A/en unknown
- 2003-10-10 AR ARP030103720A patent/AR041596A1/en not_active Application Discontinuation
- 2003-10-13 BR BRPI0314249-3B1A patent/BR0314249B1/en not_active IP Right Cessation
- 2003-10-13 PL PL375167A patent/PL202647B1/en unknown
- 2003-10-13 PT PT03753547T patent/PT1551243E/en unknown
- 2003-10-13 WO PCT/EP2003/011307 patent/WO2004034830A1/en active IP Right Grant
- 2003-10-13 DK DK03753547T patent/DK1551243T3/en active
- 2003-10-13 EA EA200500651A patent/EA006664B1/en not_active IP Right Cessation
- 2003-10-13 MX MXPA05003969A patent/MXPA05003969A/en active IP Right Grant
- 2003-10-13 AT AT03753547T patent/ATE400200T1/en active
- 2003-10-13 ME MEP-2009-184A patent/ME00801B/en unknown
- 2003-10-13 EP EP03753547A patent/EP1551243B1/en not_active Expired - Lifetime
- 2003-10-13 KR KR1020057005105A patent/KR101016682B1/en active IP Right Grant
- 2003-10-13 GT GT200300221A patent/GT200300221A/en unknown
- 2003-10-13 GE GEAP20038704A patent/GEP20104939B/en unknown
- 2003-10-13 NZ NZ539003A patent/NZ539003A/en not_active IP Right Cessation
- 2003-10-13 US US10/531,439 patent/US7213351B2/en not_active Expired - Lifetime
- 2003-10-13 CN CNB2003801013206A patent/CN100518564C/en not_active Expired - Fee Related
- 2003-10-13 UA UAA200503544A patent/UA83641C2/en unknown
- 2003-10-13 ES ES03753547T patent/ES2310246T4/en not_active Expired - Lifetime
- 2003-10-13 AU AU2003271718A patent/AU2003271718B2/en not_active Ceased
- 2003-10-13 DE DE60322087T patent/DE60322087D1/en not_active Expired - Lifetime
- 2003-10-13 CA CA2502658A patent/CA2502658C/en not_active Expired - Lifetime
- 2003-10-13 JP JP2004544195A patent/JP4801351B2/en not_active Expired - Fee Related
- 2003-10-13 SI SI200331382T patent/SI1551243T1/en unknown
- 2003-10-13 AP AP2005003258A patent/AP2017A/en active
- 2003-10-13 UY UY28018A patent/UY28018A1/en active IP Right Grant
- 2003-10-13 RS YUP-2005/0282A patent/RS51510B/en unknown
- 2003-10-14 SM SM200300017A patent/SM200300017B/en unknown
- 2003-10-15 PE PE2003001053A patent/PE20040470A1/en not_active Application Discontinuation
-
2005
- 2005-03-10 IS IS7737A patent/IS2585B/en unknown
- 2005-03-16 CR CR7752A patent/CR7752A/en unknown
- 2005-03-18 NI NI200500063A patent/NI200500063A/en unknown
- 2005-03-22 ZA ZA2005/02383A patent/ZA200502383B/en unknown
- 2005-03-28 IL IL167708A patent/IL167708A/en unknown
- 2005-04-05 EG EGNA2005000108 patent/EG23863A/en active
- 2005-04-07 MA MA28205A patent/MA27450A1/en unknown
- 2005-04-14 TN TNP2005000108A patent/TNSN05108A1/en unknown
- 2005-04-14 HR HR20050333 patent/HRP20050333B1/en not_active IP Right Cessation
- 2005-05-11 NO NO20052319A patent/NO326253B1/en not_active IP Right Cessation
- 2005-12-29 HK HK05112143.6A patent/HK1079666B/en not_active IP Right Cessation
-
2008
- 2008-08-25 CY CY20081100900T patent/CY1108284T1/en unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IL167708A (en) | Waterproofed and breathable sole for shoes and manufacturing methods therof | |
| EP1197158B1 (en) | Waterproof shoe with sole or mid-sole molded onto the upper | |
| EP2446764B1 (en) | Method for manufacturing a waterproof and vapor-permeable shoe and shoe obtained with the method | |
| CN1106814C (en) | Sealed waterproof footwear and process of waterproofing footwear article | |
| WO2001021023A1 (en) | Waterproof and moisture-permeable shoe and method for manufacture thereof | |
| EA017197B1 (en) | Vapor-permeable and waterproof sole for shoes, shoe manufactured with the sole, and method for manufacturing the sole and the shoe | |
| US20060064897A1 (en) | Waterproofed breathable sole for shoes and method for the manufacture thereof | |
| JP2002528152A (en) | Shoe with hang-up sealing and method of making the shoe | |
| JPH0618521B2 (en) | How to make polyurethane insoles | |
| JP2002528153A (en) | Sealed shoes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20231013 |