Patent ID: 7851564
Filing Date: 2010-12-14
Classification: C08G,C08K,C08L,H01L,Y10T

Abstract:
1. A silicone resin composition comprising: a) an alkenyl group-containing polysiloxane represented by a following average composition formula “A”: wherein R consists of an alkenyl group of 0.1 to 95 mole % and an alkyl group having 1 to 4 carbon atoms; and n is an integer of 1 to 3, and wherein at least one of the hydrogen atoms in the R is substituted by a heteroatom selected from the group consisting of a halogen atom, Si atom, O atom, N atom, and S atom, the alkenyl group-containing polysiloxane having a weight average molecular weight of 400 to 30000 and including 20 to 80 mole % of a Q unit represented by a following formula: b) a hydro group-containing polysiloxane represented by a following average composition formula “B”: wherein R′ consists of a hydro group of 0.1 to 95 mole % and an alkyl group having 1 to 4 carbon atoms; and m is an integer of 1 to 3, the hydro group-containing polysiloxane having a weight average molecular weight of 100 to 10000 and including 10 to 50 mole % of the Q unit represented by the aforementioned formula: and c) a pair of polysiloxane each having opposite ends sealed with a vinyl group, differing in a range of “k” and represented by a following average composition formula “C”: wherein R d) a hydrosilylating catalyst.