초록 ▼

A composite woven fabric made up of at least two plies of individual woven fabrics bonded together by a layer of flexible bonding resin disposed on juxtaposed surfaces of the individual woven fabrics. The bonding agent covers at least about 75%, preferably 100%, of the juxtaposed individual fabric s

A composite woven fabric made up of at least two plies of individual woven fabrics bonded together by a layer of flexible bonding resin disposed on juxtaposed surfaces of the individual woven fabrics. The bonding agent covers at least about 75%, preferably 100%, of the juxtaposed individual fabric surfaces and does not exude through the interstices of the woven fabric. The thus constituted fabric material is very good for use in making an anti-ballistic composite fabric. An anti-ballistic composite fabric is made up of at least one of these bonded woven fabrics sub-composites, preferably in combination with conventional non-woven fabric layers. This composite product has an exceptionally low areal density but still can withstand the impact of a 44 magnum projectile. It also offers excellent protection against knife and ice pick threats. One attribute of this composite fabric is its ability to reduce the trauma conventionally caused by the impact of a ballistic projectile, even though the projectile is stopped from penetrating the fabric.

대표청구항 ▼

[ What is claimed is:] [1.] In a composite anti-ballistic fabric comprising a plurality of individual plies of woven fabrics comprising anti-ballistic fibers;the improvement that comprises:at least one flexible, rubbery resin bonded, composite sub-assembly comprising at least two individual woven fa

[ What is claimed is:] [1.] In a composite anti-ballistic fabric comprising a plurality of individual plies of woven fabrics comprising anti-ballistic fibers;the improvement that comprises:at least one flexible, rubbery resin bonded, composite sub-assembly comprising at least two individual woven fabric plies bonded together by a surface layer of a substantially flexible rubbery resin that covers at least 75% of the juxtaposed surfaces of said at least two individual woven fabric plies to form said at least one sub-assembly,wherein said rubbery bonding resin does not penetrate through said woven plies,wherein said composite fabric comprises a plurality of said resin bonded sub-assemblies, andwherein said composite fabric has the ability to pass the NIJ IIIA specification in response to a 0.44 magnum projectile incoming at a velocity of about 1,400 to 1,450 feet per second. [16.] A method of protecting a body against penetration thereinto of an incoming ballistic projectile comprising:applying a substantially permanently flexible, rubbery bonding resin in fluid, uncured, form to at least about 75% of a major surface of a first woven fabric, comprising anti-ballistic filaments;disposing at least about 75% of a major surface of a second woven fabric, comprising anti-ballistic filaments, into contact with said uncured bonding resin;compressing said assembly of said two woven fabrics and said flexible, rubbery bonding resin an amount sufficient to cause said bonding agent to adhere to surface fibers of said fabrics, but insufficient to cause said bonding resin to penetrate through said fabrics;curing said flexible bonding agent under such conditions that the cured bonding agent adheres to and bonds together said juxtaposed major surfaces of said first and second woven fabrics to form a surface bonded, flexible, composite sub-assembly fabric,wherein said composite fabric maintains its substantial flexibility after curing said bonding agent;forming a final composite fabric, comprising a plurality of said composite sub-assembly fabrics, having an areal density of less than about 0.95 pound per square foot and being able to pass an NIJ IIIA specification in response to a 0.44 magnum projectile incoming at a velocity of about 1,400 to 1,450 feet per second; anddisposing said final composite fabric between said body in need of protection and a threat contemplated by said NIJ IIIA specification that would otherwise be adapted to penetrate said body. A method as claimed in claim 16, further comprising forming an accumulation of a plurality of said sub-assemblies sufficient in number to resist penetration therethrough of said threat. A method as claimed in claim 16 further comprising accumulating a plurality of said sub-assemblies and combining said accumulation with at least one resin bonded non-woven fabric comprising anti-ballistic filaments to produce a composite anti-ballistic fabric, wherein the number of said sub-assemblies and the number of said resin bonded non-woven fabrics is sufficient to resist the penetration therethrough of said threat. A method as claimed in claim 16 further comprising disposing at least one additional layer of uncured substantially permanently flexible resin on at least about 75% of an unbonded major surface of at least one of said first and second woven fabrics; disposing at least one additional woven fabric comprising anti-ballistic filaments on said uncured additional resin layer; and curing said additional flexible bonding agent under such conditions that: the cured bonding agent adheres said additional woven fabric to said sub-assembly over at least about 75% of their juxtaposed major surfaces, said cured bonding agent does not exude through the interstices of either of said woven fabrics, and maintains its substantial flexibility after curing; whereby forming a composite sub-assembly of said two woven fabrics and said flexible bonding resin.