Patent ID: 9646904
Date: 2017-05-09
CPC Classifications: C08G,C08K,C08L,C09D,C09J,H01L

Claim:
1. A curable resin composition comprising: a polyorganosiloxane (A); a silsesquioxane (B); an isocyanurate compound (C); and a silane coupling agent (D), the polyorganosiloxane (A) comprising both: wherein R a to R f are, independently in each occurrence, selected from the group consisting of hydrogen, an aryl-free monovalent hydrocarbon group, and a monovalent heterocyclic group, where at least one of R a to R f is a monovalent group comprising an aliphatic carbon-carbon unsaturated bond; R g represents, independently in each occurrence, a C 2 -C 4 alkylene group; and s1 and s2 each independently represent an integer of 1 or more, wherein R a to R f are, independently in each occurrence, selected from the group consisting of hydrogen, an aryl-free monovalent hydrocarbon group, and a monovalent heterocyclic group, where at least one of R a to R f is hydrogen; R g represents, independently in each occurrence, a C 2 -C 4 alkylene group; and s1 and s2 each independently represent an integer of 1 or more, the silsesquioxane (B) comprising