| 摘要 |
PURPOSE:To improve the desensitization and plate wear of a titled master plate by using a binder resin having a functional group which can form a prescribed amino group by decomposition. CONSTITUTION:This master plate is constituted by providing a photosensitive layer contg. photoconductive zinc oxide and the binder resin on a conductive base. At least one kind of said resin contains the functional group (A) which forms an -NH2 group and/or -NHR group by decomposition. R mentioned above denotes a hydrocarbon group. The groups expressed by the formulas I-III are usable for the group A. In the formulas, R0 denotes H, (substd.) alkyl of 1-12C, etc; R1 denotes (substd.) aliphat. group of 2-12C; R2, R3 denotes hydrocarbon of 1-12C; R4, R5 denote hydrocarbon of 1-8C; X1, X2 denote O, S. The resin having the group A is formable by the homopolymn. or multielement copolymn. of the compd. of the formula IV having, for example, the group expressed by the formula I. |
