The present invention relates to binders and photosensitive compositions comprising said binders. The binder comprises units A, B, C and D, wherein A is present in an amount of 0.5 to 15 wt. % and is of the formula ##STR1## B is present in an amount of 10 to 35 wt. % and is of the formula ##STR2## C is present in an amount of 10 to 50 wt. % and is of the formula ##STR3## wherein R.sup.1 is methyl, ethyl, propyl or isopropyl, and D is present in an amount of 25 to 70 wt. % and is of the formula ##STR4## wherein n is an integer of from 1 to 3 and R.sup.2, R.sup.3 are hydrogen or methyl and R.sup.4 is alkyl, aralkyl or aryl.
本发明涉及粘合剂和包含该粘合剂的光敏组合物。该粘合剂包含A、B、C和D单元,其中A的数量为0.5至15重量%,其
化学式为##STR1## B的数量为10至35重量%,其
化学式为##STR2## C的数量为10至50重量%,其
化学式为##STR3## 其中R1为甲基、乙基、丙基或异丙基,D的数量为25至70重量%,其
化学式为##STR4## 其中n为1至3的整数,R2、R3为氢或甲基,R4为烷基、芳基烷基或芳基。