Novel photosensitizers are disclosed which are particularly useful in photopolymerizable organopolysiloxane and silicone resins. The photosensitizers are themselves organopolysiloxanes which contain at least one silicon-bonded benzophenone-containing radical. Synthesis methods are disclosed for preparing these photosensitizers which employ, as starting materials, an alkenyloxy-substituted benzophenone and a silicon compound containing at least one silicon-bonded hydrogen atom.
本发明公开了新型光敏剂,这些光敏剂在可光聚合的有机聚
硅氧烷和
硅树脂中特别有用。 这些光敏剂本身是有机聚
硅氧烷,含有至少一个
硅键合的
二苯甲酮基。 本发明公开了制备这些光敏剂的合成方法,这些方法采用烯氧基取代的
二苯甲酮和含有至少一个
硅键合氢原子的
硅化合物作为起始原料。