Patent ID: 7932319

Claim:
A thermosetting resin composition comprising: an organopolysiloxane (A) containing at least one selected from the group consisting of a compound represented by formula (1) and a compound represented by formula (2): wherein R 1 independently represents a substituted or non-substituted monovalent hydrocarbon radical having from 1 to 10 carbon atoms, R 2 represents an epoxy group-containing organic group, R 3 represents R 1 or R 2 , a independently represents an integer of 2 or more, b independently represents an integer of 0 or more, and X is a group represented by formula (3) —Y—Z—Y— (3) wherein Y represents a bivalent hydrocarbon radical having from 1 to 6 carbon atoms, and Z is a group represented by formula (4) wherein R 1 independently represents a substituted or non-substituted monovalent hydrocarbon radical having from 1 to 10 carbon atoms, c represents an integer of 0 or more, n represents 0 or 1, d represents an integer of 0 or more, and Q is a group represented by formula (5) —P 0 —P 1 (5) wherein P 0 is selected from the group consisting of: a bivalent hydrocarbon radical having from 1 to 10 carbon atoms and which contains an -o- bond, an ether bond, or an ester bond; a substituted dimethyl siloxane group; and a non-substituted dimethyl siloxane group, and P 1 is selected from the group consisting of a methyl group, a trimethylsilyl group, and structures respectively represented by following formulas (6) and (7) wherein the definitions of R 1 , R 2 , R 3 , a, and b are the same as in formulas (1) and (2).