Laminated articles having discontinuous adhesive regions

Patent metadata

Field	Value
Publication number	US-9233520-B2
Application number	US-201313851761-A
Country	US
Kind code	B2
Filing date	Mar 27, 2013
Priority date	Mar 28, 2012
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

Laminated articles that include a first textile and a functional film layer bonded together by an adhesive layer having a distinctive, discontinuous adhesive pattern is provided. The discontinuous adhesive pattern creates regions free or substantially free of adhesive that permits the laminate to preferentially bend in those regions. The adhesive regions, together with the non-adhesive regions, create a visible pattern on the surface of the laminate. A second textile may be bonded to the functional film layer opposing the first textile. The first textile or the film layer may be elastic, shrinkable, or expandable. In such embodiments, raised portions of the laminate corresponding to the non-adhesive regions and curled portions corresponding to the adhesive regions are visible. The laminated article is waterproof, liquid-proof, breathable, and aesthetically pleasing and demonstrates a reduction in stiffness, improved insulation properties, improved stretch properties and a reduction of noise associated with bending the article.

First claim

Having thus described the invention, what is claimed is:

1. A laminated article comprising,
a functional film layer;
a first textile; and
a first adhesive layer bonding said functional film layer and said first textile, said first adhesive layer containing two or more adhesive regions separated by regions substantially free of adhesive, each said adhesive region containing a plurality of adhesive dots,
wherein a distance between adjacent adhesive dots within said adhesive regions is less than a distance between consecutive adhesive regions,
wherein said adhesive regions have at least one distinctive shape, wherein said laminate has a stretch force at 20% elongation of less than three times the stretch force of said first textile,
wherein each said adhesive region induces a radius of curvature that forms raised portions in said laminated article that correspond to said regions substantially free of adhesive, and
wherein said plurality of adhesive dots are distributed non-uniformly within said adhesive regions.

2. The laminated article of claim 1 , wherein said laminate has a stretch force at 20% elongation of less than two times the stretch force of said first textile.

3. The laminated article of claim 1 , wherein said laminate has a stretch force at 20% elongation of less than the stretch force of said first textile.

4. The laminated article of claim 1 , wherein said laminate has a stretch force at 20% elongation of less than 0.5 times the stretch force of said first textile.

5. The laminated article of claim 1 , wherein said laminate has a stretch force at 20% elongation of less than 0.33 times the stretch force of said first textile.

6. The laminated article of claim 1 , wherein said laminate has a stretch force at 20% elongation of less than 0.16 times the stretch force of said first textile.

7. The laminated article of claim 1 , wherein said functional film layer is a fluoropolymer.

8. The laminated article of claim 1 , wherein said functional film layer is selected from expanded polytetrafluoroethylene (ePTFE), expanded modified polytetrafluoroethylene, polytetrafluoroethylene (PTFE), ePTFE coated with a protective coating, PTFE coated with a protective coating, polyurethane and combinations thereof.

9. The laminated article of claim 1 , wherein said functional film layer is waterproof and breathable.

10. The laminated article of claim 1 , wherein said plurality of adhesive dots each have substantially the same size.

11. The laminated article of claim 1 , wherein said adhesive dots differ in size within said adhesive regions.

12. The laminated article of claim 1 , wherein adhesive dots positioned on an outer portion of said adhesive regions have a diameter that is larger than adhesive dots positioned on an inner portion of said adhesive regions.

13. A garment comprising the laminated article of claim 1 .

14. The laminated article of claim 1 , wherein said radius of curvature is greater than about 1 mm.

15. The laminated article of claim 1 , wherein said laminate preferentially bends in said regions substantially free of adhesive.

16. The laminated article of claim 1 , wherein a least one of the first textile and the adhesive regions comprises a fire retardant or fire resistant material.

17. A laminated article comprising:
a functional film layer;
a first textile; and
a first adhesive layer bonding said functional film layer and said first textile, said first adhesive layer containing adhesive regions and regions substantially free of adhesive, wherein said regions substantially free of adhesive are interspaced between said adhesive regions,
wherein said laminate has a stretch force at 20% elongation of less than three times the stretch force of said first textile,
wherein each said adhesive region induces a radius of curvature that forms raised portions in said laminated article that correspond to said regions substantially free of adhesive, and
wherein at least one of said first adhesive regions comprise a substantially continuous band of adhesive surrounding a plurality of adhesive dots.

18. The laminated article of claim 17 , wherein said laminate has a stretch force at 20% elongation of less than two times the stretch force of said first textile.

19. The laminated article of claim 17 , wherein said laminate has a stretch force at 20% elongation of less than the stretch force of said first textile.

20. The laminated article of claim 17 , wherein said laminate has a stretch force at 20% elongation of less than 0.5 times the stretch force of said first textile.

21. The laminated article of claim 17 , wherein said laminate has a stretch force at 20% elongation of less than 0.33 times the stretch force of said first textile.

22. The laminated article of claim 17 , wherein said laminate has a stretch force at 20% elongation of less than 0.16 times the stretch force of said first textile.

23. The laminated article of claim 17 , wherein said laminated article preferentially bends in said regions substantially free of adhesive.

24. The laminated article of claim 17 , wherein said regions substantially free of adhesive have a width greater than about 2 mm.

25. The laminated article of claim 17 , wherein said functional film layer is a fluoropolymer.

26. The laminated article of claim 17 , wherein said functional film layer is selected from expanded polytetrafluoroethylene (ePTFE), expanded modified polytetrafluoroethylene, polytetrafluoroethylene (PTFE), ePTFE coated with a protective coating, PTFE coated with a protective coating, polyurethane and combinations thereof.

27. The laminated article of claim 17 , wherein said plurality of adhesive dots have substantially the same size.

28. The laminated article of claim 17 , wherein said plurality of adhesive dots differ in size.

29. The laminated article of claim 17 , wherein said functional film layer is waterproof and breathable.

30. A garment comprising the laminated article of claim 17 .

31. The laminated article of claim 14 , wherein said radius of curvature is greater than about 1 mm.

32. The laminated article of claim 17 , wherein said laminate preferentially bends in said regions substantially free of adhesive.

33. The laminated article of claim 17 , wherein a least one of the first textile and the adhesive regions comprises a fire retardant or fire resistant material.

34. A laminated article comprising:
a functional film layer;
a first textile; and
a first adhesive layer bonding said functional film layer and said first textile, said first adhesive layer containing adhesive regions and regions substantially free of adhesive,
wherein said regions substantially free of adhesive are interspaced between said adhesive regions,
wherein the distribution of adhesive within said adhesive regions is non-uniform, and
wherein each said adhesive region induces a radius of curvature that forms raised portions in said laminated article that correspond to said regions substantially free of adhesive.

35. The laminated article of claim 34 , wherein said regions substantially free of adhesive have a width greater than about 2 mm.

36. A garment comprising the laminated article of claim 34 .

37. The laminated article of

Assignees

• Gore & Ass

Inventors

• Kelsey William

Classifications

• B32B27/12

  next to a fibrous or filamentary layer · CPC title

• Y10T428/24818

  Knitted, with particular or differential bond sites or intersections · CPC title

• B32B5/04 Primary

  characterised by a layer being specifically extensible by reason of its structure or arrangement {, e.g. by reason of the chemical nature of the fibres or filaments} · CPC title

• B32B7/045 Primary

  Operations & Transport · mapped topic

• B32B7/14

  applied in spaced arrangements, e.g. in stripes · CPC title