Photoinitiator with phase change properties and gellant affinity

摘要

Disclosed is a compound of the formula wherein R₁ is an alkylene, arylene, arylalkylene, or alkylarylene group, R₂ and R₂' each independently of the other, are alkylene, arylene, arylalkylene, or alklarylene groups, R₃' each, independently of the other, are either (a) photoinitiating groups, or (b) groups which are alkyl, aryl, arylalkyl, or alkylaryl groups, provide that at least one of R₃ and R₃' is a photoinitiating group, and X and X' each, independently of the other, is an oxygen atom or a group of the formula -NR₄-, wherein R₄ is a hydrogen atom, an alkyl group, an aryl group, or an alkylaryl group.