Patent ID: 7977399

Claim:
A curable composition comprising a vinyl polymer (I) having at least one crosslinkable functional group on average represented by the following general formula (1): —[Si(R 1 ) 2-b (Y) b O] m —Si(R 2 ) 3-a (Y) a (1) wherein, R 1 and R 2 are the same or different, and represent an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or a triorganosiloxy group represented by (R′) 3 SiO—, wherein R′ represents a monovalent hydrocarbon group having 1 to 20 carbon atoms; R′ present in multiple number may be the same or different, and when R 1 or R 2 is each present in the number of 2 or more, R 1 and R 2 may be the same or different; Y represents a hydroxyl group or a hydrolyzable group, and when Y is present in the number of two or more, Y may be the same or different; a represents 0, 1, 2 or 3; b represents 0, 1, or 2; and m represents an integer of 0 to 19; and wherein, the relational expression of a+mb≧1 is satisfied, a vinyl polymer (II) having at least one crosslinkable functional group on average represented by the following general formula (2): —OC(O)C(R a )═CH 2 (2) wherein, R a represents a hydrogen atom or an organic group having 1 to 20 carbon atoms, and a photopolymerization initiator (III).