发明公开
EP0021716A1 Condensation product and lithographic printing plates containing said product 失效
冷凝物和含有该产品的平版印刷版。

Condensation product and lithographic printing plates containing said product
摘要:
A photosensitive composite is provided for use in photosensitive lithographic printing plates which is a condensation product of a sulfonylchloride of an o-benzoquinonediazid or o-naphthoquinonediazid and a polyhydric phenol resin possessing 3 or more units having thefollowing generalformula:
where R 1 is a hydroxyl group, R 2 is a hydrogen or halogen atom or an alkyl or alkoxy group having 1 to 4 carbon atoms, R 3 and R 4 are individually a hydrogen atom or an alkyl group having 1 to 4 carbon atoms or a phenyl group.
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