Patent ID: 8119249

Claim:
A silicone resin composition comprising: a) a first silicone resin represented by the following general formula (A1) and incorporated at a first weight (w1); wherein R 10 s may be the same or different and are individually selected from alkyl group having 1 to 4 carbon atoms; and k1 is a number satisfying 800≦k1<900; b) a second silicone resin represented by the following general formula (A2) and incorporated at a second weight (w2); wherein R 11 s may be the same or different and are individually selected from alkyl group having 1 to 4 carbon atoms; k2 is a number satisfying k1+100≦k2<1300; and w2 is a value satisfying 0.03≦w2/w1≦0.2; c) an alkenyl-group-containing polysiloxane represented by the following formula (B): wherein R 12 is alkenyl group; and R 13 is an alkyl group having 1 to 4 carbon atoms; d) hydro-group-containing polysiloxane represented by the following average composition formula (C): R 14 m SiO (4-m)/2 (SiO 2 ) (C) wherein R 14 constituted by 0.1 to 95 mole % of a hydro group and the balance of 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 Q unit represented by formula: and e) a hydrosilylating catalyst.