Patent ID: 8182913
Filing Date: 2012-05-22
Classification: B41M,Y10T

Abstract:
1. A bi-layer structured sheet comprising a flexible substrate and a silicon resin having a thickness in a range of 1 to 200 μm formed on the substrate, wherein the silicon resin is formed by applying a silicon resin composition onto the substrate and curing the silicon resin composition, the composition comprising: (a) alkenyl group-containing polyorganosiloxane; (b) polyorganosiloxane containing SiH group so that a molar ratio of the SiH to alkenyl of the alkenyl group-containing polyorganosiloxane is in a range from 0.5 to 20; (c) a platinum group compound that is present in a content of 1 to 5,000 ppm based on the sum of the weight of the alkenyl group-containing poly-organosiloxane (a) and the SiH group-containing polyorganosiloxane (b); and (d) an organic solvent, wherein the silicon resin composition further comprises one silane coupling agent or a mixture of two or more silane coupling agents selected from the group consisting of γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropyltriethoxysilane, 3-mercaptopropyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, γ-methacryloxypropyltrimethoxysilane, γ-methacryloxypropyltriethoxysilane, γ-aminopropyltriethoxysilane, 3-isocyanatepropyltriethoxysilane, and γ-acetoacetatepropyltrimethoxysilane.