Patent ID: 8431953

Claim:
A silicone resin composition characterized in comprising the following components (A)-(D): (A) an organopolysiloxane as shown in the following general formula (1) in which the number of alkenyl groups contained per one molecule is two or more (R 1 SiO 3/2 ) x (R 2 3 SiO 1/2 ) y (R 2 2 SiO 2/2 ) z (1) (wherein R 1 is a cycloalkyl group, R 2 is either one kind of or more than one kind of substituted or non-substituted monovalent hydrocarbon group having 1-10 carbon atoms, x is 0.5-0.9, y is 0.1-0.5, z is 0-0.2, and x+y+z=1.0), (B) a hydrogen organopolysiloxane containing at least two SiH groups per one molecule, (C) a catalyst for addition reaction, (D) an adhesion promoter agent.