| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive composition which has excellent preservation stability (living preservation property) and is capable of forming a cured film with high sensitivity by exposure and to provide a negative type lithographic printing plate precursor which enables high-sensitivity recording by an infrared laser and has superior preservation stability (living preservation property) and a long plate life. <P>SOLUTION: The photosensitive composition contains (A) a polymerizable compound represented by the following formula (I), (B) an infrared absorber, and (C) an onium salt. The general formula (I) is A-[0-[(CH(-R<SP>1</SP>)CH(-R<SP>2</SP>))<SB>m</SB>-O]<SB>n</SB>-C(=O)-C(-R<SP>3</SP>)=CH<SB>2</SB>]<SB>p</SB>, wherein R1, R2 and R3 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. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
