Photosensitive composition and lithographic printing plate precursor using the same

摘要

A photosensitive composition comprising: (A) a polymerizable compound represented by the following formula (I): A-ä0-Ä(CH(-R<1>)CH(-R<2>))m-OÜn-C(=O)-C(-R<3>)=CH2üp wherein R<1>, R<2> and R<3> each represents a hydrogen atom or a methyl group, A represents a polyhydric alcohol residue or a polyhydric phenol residue, m represents an integer of from 1 to 6, n represents an integer of from 1 to 20, and p represents an integer of from 1 to 6; (B) an infrared absorber; and (C) an onium salt.