Patent ID: 6541101
Filing Date: 2003-04-01
Classification: B32B,B41M,B44C,Y10T

Abstract:
A printable laminate consisting essentially of:a substantially transparent film carrier having opposite first and second sides; a viscoelastic layer having an inner surface and an outer surface, said inner surface directly supported by one of said sides of the carrier; and a thermoplastic recording layer having an inner surface directly supported on the outer surface of said viscoelastic layer and an exposed surface for receiving printing ink; wherein said viscoelastic layer comprises one or more extensible, viscoelastic polymers having a glass transition temperature between about âˆ’55Â° C. to about +10Â° C., a storage modulus of between about 5Ã—105 and about 2Ã—106 dyne/cm2 and a loss modulus of between about 2.2Ã—105 and about 4Ã—88 poise, said viscoelastic polymers selected from the group consisting of polyurethanes, acrylics, vinyls, butadiene-styrene copolymers, isoprenestyrene copolymers, polychloroprenes, and olefinic polymers; and said recording layer comprises an ink absorber selected from the group consisting of blends of cationic polymers, blends of cationic polymers and cellulose ether, and polyvinyl alcohol, and a heat activatable adhesive selected from the group consisting of polyurethanes, acrylics, vinyls, vinyl ester copolymers, acrylic ester copolymers, ionomeric copolymers, and phenoxy resins.