Photo-radical polymerization initiator and a photo radical polymerizable composition using the same

摘要

PROBLEM TO BE SOLVED: To provide a highly sensitive curable composition which efficiently generates active free radicals by the irradiation of actinic radiations, particularly the irradiation of light.;SOLUTION: The radical photopolymerization initiator is expressed by general formula (1). In the formula, R₁ and R₂ each independently represents a monovalent organic residue; R₁ and R₂ may combine unitedly with each other and form a ring structure; R₃ and R₄ are each independently a hydrogen atom or a monovalent organic residue.;COPYRIGHT: (C)2005,JPO&NCIPI