| 摘要 |
PURPOSE: To provide a photosensitive compsn. excellent in developability especially with an aq. alkali soln. not practically contg. an org. solvent, hardly forming undissolved matter in a developer even at the time of development with an aq. alkali soln. not practically contg. an org. solvent, giving photosensitive planographic printing plates capable of development in large quantities with a certain amt. of a developer and having satisfactory printing resistance and to provide a photosensitive planographic printing plate. CONSTITUTION: This photosensitive compsn. contains a compd. represented by the formula, a polymerizable compd. having an addition-polymerizable unsatd. bond and a high molecular compd. capable of forming a film. In the formula, R<1> is a divalent combining group, R<2> is alkyl, A<-> is an anion, R<3> is methyl, ethyl, n-propyl, isopropyl, n-butyl, sec. -butyl, tert. -butyl or halogen, each of (a) and (b) is an integer satisfying 1<=a+b<=4, each of (c) and (d) is an integer satisfying 0<=c+d<=4. |
