申请人:AUTOTYPE INTERNATIONAL LIMITED
公开号:EP0313221A2
公开(公告)日:1989-04-26
Photodimerisable polymer compositions are based upon derivatives of polyvinylalcohol and constituents of the formula:
wherein
m = 0 or 1;
n = 0 or an integer from 1-6; subject to the proviso that when n = 0, then m = 0;
b = H or a tertiary amine, methoxy or ethoxy group;
X = 0, S or Se or an NR₁ or C(R₁)₂ group,
wherein R₁ = H or an alkyl, hydroxyalkyl, aryl or aralkyl group,
Z = an anion and
wherein R₂ and R₃ are the same or different and each represents H, halogen or an alkyl, hydroxyalkyl, aryl, nitro or cyano group or R₂ and R₃ taken together may form part of the same aromatic or aliphatic ring system.
The preparation and typical uses of the polymer compositions as photostencils for screenprinting are also described.
可光聚合的聚合物组合物基于聚乙烯醇的衍生物和式中的成分:
其中
m = 0 或 1;
n = 0 或 1-6 之间的整数;但当 n = 0 时,则 m = 0;
b = H 或叔胺、甲氧基或乙氧基;
X = 0、S 或 Se 或 NR₁ 或 C(R₁)₂ 基团、
其中 R₁ = H 或烷基、羟烷基、芳基或芳烷基、
Z = 阴离子,且
其中 R₂ 和 R₃ 相同或不同,且各自代表 H、卤素或烷基、羟烷基、芳基、硝基或氰基,或 R₂ 和 R₃ 可共同构成同一芳香族或脂肪族环系的一部分。
此外,还介绍了聚合物组合物作为丝网印刷光模板的制备方法和典型用途。