Patent ID: 6114091
Filing Date: 2000-09-05
Classification: G03F,Y10S

Abstract:
A photopolymerizable composition sensitive to ultraviolet and near-ultraviolet light consisting essentially ofa) a polymeric binder,b) a compound which can be polymerized by free radicals and has at least one terminal ethylenic double bond,c) a N-heterocyclic compound which is effective as a photoinitiator responsive to ultraviolet light, wherein said N-heterocyclic compound is selected from the group consisting of acridines, phenazines, quinoxalines and quinolines,d) a thioxanthone derivative of the formula I ##STR4## and e) a dialkylamino compound of the formula II or III ##STR5## in which R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from the group consisting of hydrogen, halogen, alkyl, alkoxy, carboxyl, alkoxycarbonyl and aryloxycarbonyl,R.sup.5, R.sup.6, R.sup.9, and R.sup.10 which may be the same or different, denote alkyl groups,R.sup.7 is an alkyl or alkoxyalkyl group, andR.sup.8 denotes an alkylene group.