Windproof waterproof breathable seamed articles
View Patent ↗The present invention provides waterproof, breathable non-textile seamed articles which exhibit high levels of durability and allow wearers a high level of flexibility and article strength. This invention is of particular interest for use in dexterous hand coverings and conformable foot coverings.
1. A seamed article comprising:
(a) a first non-textile material comprising a first microporous polymer layer and a first thermoplastic polymer layer;
(b) a second non-textile material comprising a second microporous polymer layer and a second polymer layer; and
(c) a seam joining said first polymer layer to said second polymer layer,
wherein said thermoplastic polymer layer is adjacent to and in contact with said second polymer layer,
wherein at least one of (1) said first polymer layer and said first microporous layer and (2) said second polymer layer and said second microporous layer are adhered via an adhesive layer, and
wherein said first non-textile material differs in composition from said second non-textile material.
2. The seamed article of claim 1 wherein the first non-textile material and the second non-textile material are breathable.
3. The seamed article of claim 1 wherein the first non-textile material and the second non-textile material are waterproof.
4. The seamed article of claim 1 wherein the first non-textile material and the second non-textile material are breathable and waterproof.
5. The seamed article of claim 1 wherein either the first non-textile material or the second non-textile material are breathable and waterproof.
6. The seamed article of claim 1 wherein the first polymer layer is a film layer.
7. The seamed article of claim 1 , wherein said seamed article is adapted for insertion into an air permeable or water permeable shell, said shell being knit, woven, nonwoven, leather, or composite fabric shell.
8. The seamed article of claim 1 , wherein said adhesive layer is selected from a discontinuous adhesive and a breathable continuous adhesive.
9. A seamed non-textile article comprising:
(a) a first non-textile material comprising a first microporous polymer layer and a thermoplastic polymer layer;
(b) a second non-textile material comprising a second microporous polymer layer; and a polymer layer;
(c) a seam joining said thermoplastic polymer layer to said polymer layer; and
(d) an interface layer where said thermoplastic polymer layer and said polymer layer meet,
wherein said thermoplastic polymer layer is adjacent to and in contact with said polymer layer,
wherein at least one of (1) said thermoplastic polymer layer and said first microporous polymer layer and (2) said polymer layer and said second microporous polymer layer are adhered via an adhesive layer, and
wherein said first non-textile material differs in composition from said second non-textile material.
10. The seamed article of claim 9 wherein the first non-textile material and the second non-textile material are waterproof.
11. The seamed article of claim 9 wherein the first non-textile material and the second non-textile material are breathable and waterproof.
12. The seamed article of claim 9 wherein at least one of the microporous polymer layers comprises an expanded polytetrafluoroethylene.
13. The seamed article of claim 9 , wherein said seamed article is adapted for insertion into an air permeable or water permeable shell, said shell being knit, woven, nonwoven, leather, or composite fabric shell.
14. A seamed article consisting essentially of:
(a) a first non-textile material comprising a first microporous polymer layer and a thermoplastic polymer layer;
(b) a second non-textile material comprising a second microporous polymer layer and a polymer layer; and
(c) a seam joining said thermoplastic polymer layer to said polymer film layer,
wherein said thermoplastic polymer layer is adjacent to and in contact with said polymer layer, and
wherein said first non-textile material differs in composition from said second non-textile material.
15. The seamed article of claim 14 , wherein said first microporous layer differs in composition from said second microporous layer.
16. The seamed article of claim 15 , wherein said thermoplastic polymer layer differs in composition from said polymer layer.
17. The seamed article of claim 14 , wherein said thermoplastic polymer layer differs in composition from said polymer layer.
18. The seamed article of claim 14 , wherein at least one of the first and second microporous polymer layers comprises an expanded polytetrafluoroethylene.
19. The seamed article of claim 14 , wherein at least one of (1) said first microporous polymer layer and said thermoplastic polymer layer and (2) said second microporous polymer layer and said polymer layer are adhered via an adhesive layer.
20. The seamed article of claim 14 , wherein the first non-textile material and the second non-textile material are waterproof.
21. The seamed article of claim 14 , wherein said seam exhibits a stiffness of less than 25 g/in.
22. The seamed article of claim 14 , wherein said seam exhibits a strength greater than 4 pli.
23. The seamed article of claim 14 , wherein said seamed article is adapted for insertion into an air permeable or water permeable shell, said shell being a knit, woven, nonwoven, leather, or composite fabric shell.