The invention relates to radically copolymerizable acetophenone or benzophenone derivatives, which may be obtained by reacting a) acrylic or methacrylic compounds, which contain at least one isocyanate-reactive group [compounds a)], with b) compounds, which contain at least two isocyanate groups [compounds b)] and c) acetophenone or benzophenone derivatives, which contain at least one isocyanate-reactive group [compounds c)]. Said invention also relates to copolymers, which contain said copolymerizable photoinitiators, as well as to the use of said copolymers in V-crosslinkable substances, in particular hot-melt pressure-sensitive adhesives.
本发明涉及可以通过反应a)含有至少一个
异氰酸酯反应基团的
丙烯酸或
甲基丙烯酸化合物(化合物a)与b)含有至少两个
异氰酸酯基团的化合物(化合物b)和c)含有至少一个
异氰酸酯反应基团的
乙酰苯或苯甲酮衍
生物(化合物c)而获得的基本共聚物。本发明还涉及包含该共聚光
引发剂的共聚物以及在V-交联物质,特别是热熔压敏胶粘剂中使用该共聚物的用途。