OXIME DERIVATIVES AND THE USE THEREOF AS PHOTOINITIATORS

摘要

Radically photopolymerizable compositions comprising (a) at least one ethylenically unsaturated photopolymerizable compound; (b) as photoinitiator, at least one compound of the formula I, II, III and/or IV wherein m is 0 or 1; n is 0, 1, 2 or 3; x is 1 or 2; R 1 is inter alia phenyl, naphthyl, anthracyl or phenanthryl, a heteroaryl radical, C 2 -C 12 alkenyl, C 4 -C 8 cycloalkenyl, or C 6 -C 12 bicycloalkenyl; R' 1 is inter alia C 2 -C 12 alkylene, or phenylene; R 2 has one of the meanings of R 1 or inter alia is phenyl; y is 1 or 2; R 3 if x is 1 inter alia is C 1 -C 18 alkylsulfonyl, or phenyl-C 1 -C 3 alkylsulfonyl, R 3 if x is 2, is for example C 2 -C 12 alkylenedisulfonyl; R 4 and R 5 inter alia are hydrogen, halogen, or C 1 -C 8 alkyl; A is for example -S-, -O-, or -NR 10 -; R 10 inter alia is hydrogen, or phenyl; and (c) at least one coinitiator; are especially suitable for the preparation of colour filter systems.