Patent ID: 8598282

Claim:
A silicone resin composition comprising (A) 49 to 95 parts by mass of an organopolysiloxane having at least two alkenyl groups per molecule, (B) total 0.001 to 50 parts by mass of the following linear organohydrogenpolysiloxanes (B-1) and (B-2); (B-1) a linear organohydrogenpolysiloxane which has hydrogen atoms each bonded to a silicon atom at the both terminals, and (B-2) a linear organohydrogenpolysiloxane which has a single hydrogen atom bonded to a silicon atom at one terminal and a single hydroxyl or a single alkoxy group bonded to a silicon atom at the other terminal, provided that a mass ratio of the components (B-1) to (B-2) is (90 to 99.9):(10 to 0.1), (C) 0.01 to 20 parts by mass of a branched organohydrogenpolysiloxane having at least three hydrosilyl groups per molecule, provided that a total amount of components (A), (B) and (C) is 100 parts by mass, (D) a catalytic amount of an addition reaction catalyst, and (E) 0.001 to 1 part by mass of a condensation catalyst, relative to a total 100 parts by mass of components (A), (B) and (C).