Patent ID: 7279266

Claim:
A photosensitive composition comprising; (A) a polymerizable compound represented by the following formula (I): A—{O—[(CH(—R 1 )CH(—R 2 )) m —O] n —C(═O)—C(—R 3 )═CH 2 } p (I) wherein R 1 , R 2 and R 3 each represents a hydrogen atom or a methyl group, A represents a polyhydric phenol residue, m represents an integer of from 1 to 6, n represents an integer of from 2 to 10, and p represents an integer of from 1 to 6; (B) an infrared absorber; and (C) an onium salt, wherein an amount of the polymerizable compound represented by formula (I) is from 75 to 100 wt % based on the total polymerizable compounds contained in the photosensitive composition.