Patent ID: 6479706
Filing Date: 2002-11-12
Classification: C07C,C08F,G03F

Abstract:
A method for making a polymer with substantially no mutagenic leachates, the method comprising exposing a composition which is substantially free of epoxy resin and comprises a photopolymerizable compound comprising at least one ethylenically unsaturated double bond to ultraviolet radiation in the presence of a substantially non-mutagenic photoinitiator having photoinitiation activity similar to that exhibited by 4,4â€²-bis(dimethylamino)benzophenone under similar conditions, said photoinitiator having the Formula (I) wherein:each A is independently lower alkyl, with the proviso that no more than three A are the same lower alkyl; each R is independently selected from the group consisting of hydrogen, lower alkyl, cycloalkyl, aryl, lower alkanol, lower alkoxy, halogen, sulfonyl, alkylsulfonyl, trihaloalkyl, trihaloalkoxy, trihaloalkylthio, polymerizable moiety, and oligomeric moiety; and n is an integer from 1 to 4.