A photopolymerizable composition comprising photopolymerizable ethylenically unsaturated compounds and, as the photoinitiator, a benzoyl benzoate having the formula: ##STR1## wherein X is OR, NHR or NRR; R is an independently selected hydrocarbon of 1 to 30 carbon atoms, alkoxysubstituted alkyl of 2 to 12 carbon atoms or aminosubstituted alkyl of 2 to 12 carbon atoms; R' is an independently selected halogen or X; and n and m are independently selected integers from 0 to 3.
一种光聚合物组合物,包括光聚合性
乙烯基不饱和化合物和作为光
引发剂的苯甲酰苯酯,其
化学式为:##STR1## 其中X为OR,NHR或NRR;R为独立选择的1至30个碳原子的烃基,2至12个碳原子的烷氧基取代的烷基或2至12个碳原子的
氨基取代的烷基;R'为独立选择的卤素或X;n和m是独立选择的0至3的整数。