Patent ID: 7494756
Filing Date: 2009-02-24
Classification: C08G

Abstract:
1. A fuser member comprising: a substrate; an outer layer covering the substrate; and a release coating on an exterior surface of the outer layer, wherein the release coating includes a combination of a linear polymer and a hyperbranched polymer which is the product of structures represented by the following Formula I: wherein R 1 , R 2 , and R 3 are selected from the group consisting of H, CH 3 , alkyl, aryl, alkylaryl, trimethylsilane, dimethylsilane, methylsilane, a polysiloxane oligomer or polymer, or an amine-, mercapto-, or fluorine-containing polysiloxane oligomer or polymer; R 4 , R 5 , and R 6 , are selected from the group consisting of CH 3 , alkyl, aryl, alkylaryl, alkylamino, alkylmercapto, fluoroalkyl; x=0-400, y=0-400, z=0-400, n=0-400; and x+y+z+n is selected so that the final product achieves a fluid viscosity of from about 10 cSt to about 1000 cSt at room temperature, and further wherein the linear polymer is present in an amount of from about 25 percent to about 90 percent and the hyperbranched polymer is present in an amount of from about 10 percent to about 75 percent of the release coating.