Patent ID: 7781541

Claim:
A polyimide silicone resin, characterized in that the polyimide silicone resin comprises repeating units represented by the following formula (1) and has a number average molecular weight of from 5,000 to 200,000 wherein X is a tetravalent organic group, at least one of the tetravalent organic groups being represented by the following formula (2) wherein R 1 may be the same with or different from each other and is a monovalent hydrocarbon group having 1 to 8 carbon atoms, R 2 may be the same with or different from each other and is a trivalent organic group, and n ranges from 1 to 120 on average, and Y is a divalent organic group, wherein 50 mole % or more of Y is the divalent organic group comprising a phenolic hydroxyl group or a carboxyl group bonded to an aromatic ring.