Patent ID: 8729178

Claim:
A polysiloxane-grafted polyimide resin composition comprising: a polysiloxane-grafted polyimide resin of formula (I): wherein W represents a tetravalent organic group, R represents a trivalent organic group, and X represents a polysiloxane-containing group; and a solvent, wherein X is represented by the following formula: —X 1 —X 2 wherein X 1 represents a formula of wherein Y 1 and Y 3 independently represent an unsubstituted or substituted C 1 -C 13 alkylene group, an unsubstituted or substituted C 6 -C 12 arylene group, or an unsubstituted or substituted C 7 -C 12 aralkylene group, and Y 2 represents an unsubstituted or substituted C 1 -C 13 alkylene group, wherein part of methylene groups of said alkylene group is optionally replaced by oxygen atoms with the proviso that when some methylene groups are replaced by oxygen atoms, a structure in which two oxygen atoms adjoin together is excluded, and X 2 represents a polysiloxanyl group.