Low weight and high durability soft body armor composite using silicone-based topical treatments
View Patent ↗Ballistic resistant articles having abrasion resistance. Particularly, abrasion resistant, ballistic resistant articles and composites having a silicone-based topical treatment.
1. A ballistic resistant article comprising:
an abrasion resistant composite comprising at least one fibrous substrate having a multilayer coating thereon, wherein said fibrous substrate comprises one or more fibers having a tenacity of about 7 g/denier or more and a tensile modulus of about 150 g/denier or more; said multilayer coating comprising a layer of a non-silicon-containing material on a surface of said one or more fibers, and a topical layer of a silicon-containing material on the non-silicon-containing material layer,
wherein said ballistic resistant article is a soft armor article that is a garment or a hard armor article that is a helmet, a panel for a military vehicle, or a protective shield.
2. The ballistic resistant article of claim 1 wherein said silicon-containing coating comprises a silicone-based polymer.
3. The ballistic resistant article of claim 1 wherein said silicon-containing coating comprises a cured thermoset polymer, a non-reactive thermoplastic polymer or an uncured silicon-containing fluid.
4. The ballistic resistant article of claim 1 wherein said silicon-containing coating comprises a silicon-containing antifoam, a silicon-containing lubricant or a silicon-containing release coating.
5. The ballistic resistant article of claim 1 wherein said silicon-containing coating comprises a polymeric organic siloxane.
6. The ballistic resistant article of claim 1 wherein the non-silicon-containing material comprises a polyurethane polymer, a polyether polymer, a polyester polymer, a polycarbonate polymer, a polyacetal polymer, a polyamide polymer, a polybutylene polymer, an ethylene-vinyl acetate copolymer, an ethylene-vinyl alcohol copolymer, an ionomer, a styrene-isoprene copolymer, a styrene-butadiene copolymer, a styrene-ethylene/butylene copolymer, a styrene-ethylene/propylene copolymer, a polymethyl pentene polymer, a hydrogenated styrene-ethylene/butylene copolymer, a maleic anhydride functionalized styrene-ethylene/butylene copolymer, a carboxylic acid functionalized styrene-ethylene/butylene copolymer, an acrylonitrile polymer, an acrylonitrile butadiene styrene copolymer, a polypropylene polymer, a polypropylene copolymer, an epoxy polymer, a novolac polymer, a phenolic polymer, a vinyl ester polymer, a nitrile rubber polymer, a natural rubber polymer, a cellulose acetate butyrate polymer, a polyvinyl butyral polymer, an acrylic polymer, an acrylic copolymer, an acrylic copolymer incorporating non-acrylic monomers or combinations thereof.
7. The ballistic resistant article of claim 1 wherein said fibrous substrate has two surfaces, each comprising a layer of non-silicon-containing material having topical layers of the silicon-containing material substantially coating the layers of non-silicon-containing material.
8. The ballistic resistant article of claim 1 wherein said silicon-containing material comprises from about 0.01% to about 5.0% by weight of said composite.
9. The ballistic resistant article of claim 1 wherein said non-silicon-containing material comprises from about 1% to about 50% by weight of said composite.