Patent ID: 7994246
Filing Date: 2011-08-09
Classification: C08G,C08L,H01L

Abstract:
1. A curable silicone composition comprising at least the following components: (A) (A where, R 1 , R 2 , and R 3 may be the same or different and designate monovalent hydrocarbon groups selected from alkyl groups, cycloalkyl groups, alkenyl groups, aryl groups, aralkyl groups, or halogenated alkyl groups; or epoxy-containing monovalent hydrocarbon groups; however, at least 20 mole % of the groups designated by R 3 are aryl groups; and where “a”, “b”, and “c” are numbers that satisfy the following conditions: 0≦a≦0.8; 0≦b≦0.8; 0.2≦c≦0.9; a+b+c=1, and/or (A 2 ) a diorganopolysiloxane of the following general formula: where R 4 is a monovalent hydrocarbon group selected from an alkyl group, a cycloalkyl group, an aryl group, or an aralkyl group, or a halogenated alkyl group; R 5 is bivalent organic group; and “A” is a siloxane residual radical represented by the following average unit formula: where R 4 is the same as defined above, and “X” is a single bond, a hydrogen atom, a group designated by R 4 , an epoxy-containing monovalent organic group, or an alkoxysilylalkyl group; however, at least one group designated by “X” in one molecule is a single bond, at least two groups designated by “X” are epoxy-containing monovalent organic groups; “d” is a positive number; “e” is a positive number; and “d/e” is a number ranging from 0.2 to 4, and where “m” is an integer equal to or greater than 1; (B) a curing agent for epoxy resin; and (C) an epoxy compound represented by the following general formula: where R 8 is a monovalent hydrocarbon group selected from an alkyl group, a cycloalkyl group, an ethoxy-substituted alkyl group, an alkenyl group, an aryl group, an aralkyl group, a halogenated alkyl group, or alkoxy-substituted aryl group, wherein the hydrocarbon group has 1 to 10 carbon atoms; and “f” is an integer from 0 to 4.