Water repellent composite laminate fabrics

Patent metadata

Field	Value
Publication number	US-11046047-B2
Application number	US-201715834638-A
Country	US
Kind code	B2
Filing date	Dec 7, 2017
Priority date	Jan 15, 2017
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

Multilayer composite materials combining a low tenacity nylon fabric with a fabric formed from high tenacity fibers. The fabrics are bonded with a compatibilizing adhesive system that achieves a peel strength of at least 1.5 lbs/inch. The nylon is colored with a camouflage pattern and the high strength fabric is colored with a color that does not stand out relative to the camouflage pattern. The composite materials are used for forming vest covers and plate carrier materials, particularly webless plate carrier materials having slots for hanging modular accessories.

First claim

What is claimed is:

1. A multilayer composite comprising:
a) an outer fibrous material layer having first and second surfaces, said outer fibrous material layer comprising one or more fibrous plies; each of said fibrous plies comprising a plurality of fibers; said first surface of the outer fibrous material layer having a colored appearance;
b) a fibrous base layer adjoined with the outer fibrous material layer, said fibrous base layer having first and second surfaces, wherein said first surface of the fibrous base layer is positioned facing said second surface of the outer fibrous material layer; said base layer comprising one or more fibrous plies, each of said fibrous plies comprising a plurality of fibers having a tenacity of greater than 10 g/denier; wherein at least some of the fibers of said outer fibrous material layer are chemically different than at least some of the fibers of said fibrous base layer; and wherein the second surface of the fibrous base layer has a colored appearance; and
c) a first intermediate layer and a second intermediate layer between the outer fibrous material layer and the fibrous base layer, wherein said first intermediate layer comprises a polyurethane scrim having first and second surfaces and said polyurethane scrim comprises a polyurethane net or a polyurethane mesh, and said second intermediate layer comprises a compatibilizing adhesive polymer layer having first and second surfaces, wherein said first intermediate layer and said second intermediate layer are bonded together, wherein the first surface of said polyurethane scrim is bonded to the second surface of the outer fibrous material layer and the second surface of the polyurethane scrim is in contact with the first surface of the adhesive polymer layer, and the second surface of the adhesive polymer layer is bonded to a first surface of the fibrous base layer, and wherein the composite has a peel strength between the outer fibrous material layer and the fibrous base layer of at least 1.5 lbs/inch.

2. The composite of claim 1 wherein the outer fibrous material layer comprises nylon fibers and the fibrous base layer comprises ultra-high molecular weight polyethylene fibers.

3. The composite of claim 2 wherein said polyethylene fibers have a tenacity of at least 27 g/denier.

4. The composite of claim 1 wherein the outer fibrous material layer comprises a woven nylon fabric, wherein the first surface of the outer fibrous material layer is coated with a durable water repellent, and wherein the polyurethane scrim has a thickness of from about 1μm to about 250 μm.

5. The composite of claim 1 wherein said compatibilizing adhesive polymer layer comprises a modified polyethylene film.

6. The composite of claim 1 wherein said compatibilizing adhesive polymer layer comprises a dual ply adhesive film.

7. The composite of claim 6 wherein said dual ply adhesive film comprises a first polymer ply and a second polymer ply, wherein the first polymer ply comprises a first polymer and the second polymer ply comprises a second polymer, wherein the first polymer and second polymer are different, wherein the first polymer ply and the second polymer ply are unified and at least partially fused together wherein polymer molecules from the first polymer ply are commingled with polymer molecules from the second polymer ply, said commingled molecules forming a molecular entanglement region at the interface of the two polymer plies.

8. The composite of claim 1 wherein the first surface of the outer fibrous material layer is coated with a water repellent.

9. The composite of claim 8 wherein the water repellent comprises a durable water repellent that comprises a fluoropolymer or a fluorine-modified polymer.

10. The composite of claim 1 wherein each of the fibrous plies of the outer fibrous material layer is woven and wherein each of the fibrous plies of the fibrous base layer is woven.

11. The composite of claim 2 wherein the colored appearance of the first surface of the outer fibrous material is provided by one or more outer colorants applied to the fibers of said outer fibrous material, wherein each of said outer colorants has an outer color value, and wherein the colored appearance of the second surface of the fibrous base material is provided by a colored polymeric film coated on the second surface of the fibrous base layer, wherein said colored polymeric film comprises one or more inner colorants, wherein each of said inner colorants has an inner color value, wherein each of said inner color values is the same as or darker than each outer color value of the outer fibrous material layer.

12. The composite of claim 1 wherein the fibrous base layer comprises fibrous base layer fibers, wherein said fibrous base layer fibers consist of ultra-high molecular weight polyethylene fibers, and wherein the polyurethane scrim has a thickness of from about 5 μm to about 150 μm.

13. The composite of claim 1 wherein said fibrous base layer is impregnated with a thermoplastic polymeric binder material, and wherein the polyurethane scrim has a thickness of from about 10 μm to about 100 μm.

14. The composite of claim 1 wherein the outer fibrous material layer comprises outer fibrous material layer fibers, wherein said outer fibrous material layer fibers consist of nylon fibers, and wherein the fibrous base layer comprises fibrous base layer fibers, wherein said fibrous base layer fibers consist of polyethylene fibers.

15. The multilayer composite of claim 1 , wherein the colored appearance of the first surface of the outer fibrous material is a camouflage pattern; wherein the colored appearance of the fibrous base layer is provided by a colored film having a single color;
wherein a pattern of shaped openings is cut into and completely through the composite, whereby any exposure of the second surface of the fibrous base layer through said perforations is camouflaged by the colored appearance of the first surface of the outer fibrous material layer,
and wherein the fibrous base layer comprises fibrous base layer fibers, wherein said fibrous base layer fibers consist of ultra-high molecular weight polyethylene fibers.

Assignees

• Honeywell Int Inc

Inventors

• Arvidson Brian Duane
• Ardiff Henry Gerard
• Waring Brian
• Wagner Lori L
• Davis Gregory A

Classifications

• B32B27/12

  next to a fibrous or filamentary layer · CPC title

• B32B2307/73

  Hydrophobic · CPC title

• F41H3/02

  {Flexible, e.g. fabric} covers, e.g. screens, nets {characterised by their material or structure}(making thereof, see the relevant classes, e.g. D04) · CPC title

• B32B27/08 Primary

  of synthetic resin · CPC title

• B32B2323/04

  Polyethylene · CPC title