| 摘要 |
PURPOSE:To obtain the titled composition which has improved half-tone and chemical and wear resistances by incorporating a copolymer of methacrylic acid and an alkyl ester thereof, a specific compd. contg. an end ethylenic group, a photopolymerization initiator capable of activating with an active ray and a high molecular org. acid to the titled composition. CONSTITUTION:The composition contains the copolymer composed of methyacrylic acid and the alkyl ester thereof, the compd. which has >=100 deg.C b.p. at atmospheric pressure, and 2 or more of the polymerizable end ethylenic groups, the photopolymerization initiator capable of activating with the active ray and the high molecular org. acid. Thus, the photosensitive layer of the titled composition can be improved in developing property and half-tone, thereby obtaining the image having high quality. The chemical and wear resistances of the titled composition are improved. |
