Photopolymerizable aryl and heterocyclic glyoxylamide compositions

摘要

A photopolymerizable composition comprising photopolymerizable ethylenically unsaturated compounds and, as the photoinitiator, a glyoxylamide having the formula: I or II wherein R and R1 are individually selected hydrogen or hydrocarbon of from 1 to 10 carbon atoms; R2 is a heterocyclic radical, aryl of from 6 to 14 carbon atoms or mono-, di- or polysubstituted phenyl with substituents selected from the group consisting of alkyl, alkoxy, aryloxy, alkylthio, arylthio and halogen; R3 is phenyl or-CH2)z WHERE Z IS AN INTEGER FROM 2 TO 6; X is zero, oxygen, sulfur, -NH-, phosphorus or silicon; and n is an integer from 2 to 4. The composition cures upon exposure to actinic radiation.