Patent ID: 7385017

Claim:
A silicone resin composition which comprises a silicone resin mainly constituted of a polyorganosilsesquioxane represented by general formula (1) [RSiO 3/2 ] n (1) (wherein R is an organic functional group containing a (meth)acryloyl group and n is 8, 10 or 12) and containing a cage type structure in the constitutional unit and an unsaturated compound containing at least one unsaturated group represented by —R 3 —CR 4 ═CH 2 or —CR 4 ═CH 2 (wherein R 3 is an alkylene group, an alkylidene group or a —OCO— group and R 4 is hydrogen or an alkyl group) in the molecule and radically copolymerizable with said silicone resin at a ratio by weight of 1:99 to 99:1, wherein 10-100 wt % of the unsaturated compound copolymerizable with the silicone resin is accounted for by an alicylic unsaturated compound represented by the following general formula (2) (wherein Z is a group represented by (2a) or (2b) and R is hydrogen or methly group).