Patent ID: 9469939
Filing Date: 2016-10-18
CPC Classification: D06N,D21H,F41H,Y10T

Claim Text:
1. A ballistic resistant fibrous composite comprising at least one fibrous substrate having a multilayer coating thereon, wherein said fibrous substrate comprises one or more yarn bundles having a tenacity of about 7 g/denier or more and a tensile modulus of about 150 g/denier or more, each yarn bundle comprising a plurality of fibers; said multilayer coating comprising a first polymer layer on a surface of said fibers, said first polymer layer comprising a first polymer, and a second polymer layer on said first polymer layer, said second polymer layer comprising a second polymer, wherein the first polymer and the second polymer are the same and comprise a blend of a nitrile rubber and a fluoropolymer, wherein said fluoropolymer comprises a polychlorotrifluoroethylene homopolymer, a chlorotrifluoroethylene copolymer, an ethylene-chlorotrifluoroethylene copolymer, an ethylene-tetrafluoroethylene copolymer, a fluorinated ethylene-propylene copolymer, perfluoroalkoxyethylene, polytetrafluoroethylene, polyvinyl fluoride, polyvinylidene fluoride, a fluorocarbon-modified polyether, a fluorocarbon-modified polyester, a fluorocarbon-modified polyanion, a fluorocarbon-modified polyacrylic acid, a fluorocarbon-modified polyacrylate, a fluorocarbon-modified polyurethane, or a copolymer or a blend thereof, wherein at least the first polymer layer penetrates each yarn bundle and coats the individual fibers within each yarn bundle, and wherein the multilayer coating comprises at least one additional polymer layer on the second polymer layer, wherein the at least one additional polymer layer is different than the first polymer layer and the second polymer layer, and wherein the total weight of the combined polymeric coatings comprises from about 10% to about 22% by weight of the composite.