Patent ID: 7479322
Filing Date: 2009-01-20
Classification: B05D,B29C,B29K,B32B,Y10T

Abstract:
1. A radiation cured composite layered sheet or film, made by a method comprising thermoforming a radiation curable composite layered sheet or film comprising at least one substrate layer, one radiation curable outer layer, and a coloring interlayer between the at least one substrate layer and the outer layer, and curing the radiation curable outer layer of the thermoformed radiation curable composite layered sheet to form the radiation cured composite layered sheet or film, wherein the at least one substrate layer comprises a thermoplastic polymer selected from the group consisting of polymethyl methacrylates, polybutyl methacrylates, polyethylene terephthalates, polybutylene terephthalates, polyvinylidene fluorides, polyvinyl chlorides, polyolefins, polyamides, polycarbonates, acrylonitrile-butadiene-styrene (ABS) polymers, acrylic-styrene-acrylonitrile (ASA) copolymers, acrylonitrile-ethylene-propylene-diene-styrene copolymers (A-EPDM), polyether imides, polyether ketones, polyphenylene sulfides, polyphenylene ethers and mixtures thereof, wherein the radiation curable outer layer of the radiation curable composite layered sheet or film comprises a radiation-curable composition comprising a binder having a glass transition temperature of more than 40° C., and wherein the binder is a polyurethane obtained by a reaction comprising reacting hydroxylalkyl (meth)acrylic groups with isocyanate groups.