| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming composition and a photosensitive planographic printing plate excellent in sensitivity to light in the infrared region, development latitude, the number of processed square meters and printing durability. <P>SOLUTION: The image forming composition comprises (A) a high molecular compound obtained by bringing a resin polymer having phenolic hydroxyl groups and a silane coupling agent represented by formula (1) or (2) into an addition reaction, (B) a photoacid generating agent, (C) an infrared absorbent and (D) an alkali-soluble resin. The photosensitive planographic printing plate is obtained by disposing the image forming composition on a support. In the formulae (1) and (2), X<SP>1</SP>and X<SP>2</SP>each represent trimethoxysilyl or the like; G<SP>1</SP>represents O or COO; R<SP>1</SP>and R<SP>2</SP>each represent H or methoxy; R<SP>3</SP>represents m pieces of methylene groups which may have a side chain of a hydrocarbon group; G<SP>2</SP>represents O or COO; R<SP>4</SP>represents H or linear or branched alkyl; and R<SP>5</SP>represents n pieces of methylene groups which may have a side chain of a hydrocarbon group. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
