Patent ID: 6541109
Filing Date: 2003-04-01
Classification: C09J,Y10T

Abstract:
A release coating comprising the crosslinked product of:a copolymer comprising at least one silicone block and at least one vinyl copolymeric block; and a second polymer that is different from said copolymer, and selected from the group consisting of acrylic polymers, polyurethanes, polyesters, polyamides, polyimides, vinyl copolymers, polycarbonates, polyolefins, and combinations thereof; wherein one of said copolymer and said second polymer comprises an acidic moiety and the other comprises a basic moiety, and wherein said at least one vinyl copolymeric block of said copolymer comprises, per 100 parts by weight of the copolymer, 35 to 50 parts by weight of a nonionic free radically polymerizable monomer, 20 to 45 parts by weight of a free radically polymerizable monomer having a basic moiety, and 2 to 5 parts by weight of a free radically polymerizable monomer having an acidic moiety.