| abstract |
Photoinitiator mixture comprising at least one alpha-amino ketone compound; and at least one compound of the Formula (I) or (I' ) wherein R 1 and R' 1 for example are hydrogen, C 3 -C 8 cycloalkyl or C 1 -C 12 alkyl R 2 and R 2 ' for example are hydrogen; unsubstituted C 1 -C 20 alkyl or substituted C 1 -C 20 alkyI; and R 8 and R 9 for example are are hydrogen, C 1 -C 12 alkyl which optionally is substituted, or phenyl which optionally is substituted; exhibit an unexpectedly good performance in photopolymeri- zation reactions. |