Patent ID: 6231921
Filing Date: 2001-05-15
Classification: B32B,D06N,F41H,Y10T

Abstract:
A method of using crosslinkable polymer powders for producing ballistic-resistant fiber material selected from the group consisting of aramid fibers, carbon fibers, glass fibers and fiber blends comprising aramid fibers, which comprises consolidating the fiber materials in the form of textile sheets by means of pulverulent crosslinkable copolymers which are based on ethylenically unsaturated monomers having a glass transition temperature Tg or a melting point of .gtoreq.40.degree. C. and a melt viscosity of .gtoreq.2000 mPas, said copolymers being based on at least one monomer selected from the group consisting of vinyl esters of branched or unbranched alkylcarboxylic acids having 1 to 15 carbon atoms, methacrylic esters and acrylic esters of alcohols having 1 to 15 carbon atoms, vinylaromatics, and olefins, each copolymer containing 0.01 to 25% by weight, based on the total weight of the copolymers of crosslinkable functional comonomers.