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发明授权
US5700619A Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates 失效
乙缩醛聚合物及其在光敏组合物和平版印刷版中的应用

Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates
摘要：
This invention relates to a binder containing the units A, B, C, D and E, wherein A is present in an amount of 10 to 60 mole % and is of the formula ##STR1## B is present in an amount of 1 to 30 mole % and is of the formula ##STR2## C is present in an amount of 5 to 60 mole % and is of the formula ##STR3## D is present in an amount of 0 to 60 mole % and is of the formula ##STR4## E is present in an amount of 1 to 40 mole % and is of the formula ##STR5## wherein X is an aliphatic, aromatic or araliphatic spacer group, R.sup.1 is hydrogen or an aliphatic, aromatic or araliphatic group, R.sup.2, R.sup.3 and R.sup.4 are hydrogen or alkyl groups with carbon numbers of from 1 to 18 and Y is a saturated or unsaturated chain- or ring-shaped spacer group, and photosensitive compositions containing this binder.
摘要（中）：

本发明涉及含有单元A，B，C，D和E的粘合剂，其中A以10至60摩尔％的量存在并且具有式30摩尔％并且具有式（B） ）C以5至60摩尔％的量存在并且具有式（C）的化合物：D的存在量为0至60摩尔％，并且具有式0摩尔％，并且具有式 （E）其中X是脂族，芳族或芳脂族间隔基，R 1是氢或脂族，芳族或芳脂族基团，R 2，R 3和R 4是氢或碳数为1至18的烷基，Y是 饱和或不饱和的链或环形间隔基，以及含有该粘合剂的光敏组合物。

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