| abstract |
(57) R 1 and R 2 are independently of each other, for example a group of the formula (II), R 3 , R 4 , R 5 , R 6 and R 7 are independently of each other, for example , Hydrogen, C 1 -C 12 alkyl, OR 8 , SR 9 , NR 10 R 11 , halogen, phenyl; R 8 , R 9 , R 10 , R 11 independently of one another, for example hydrogen or C 1 be -C 12 alkyl; R 12 is, for example, be a C 1 -C 8 alkyl; R 13 is, for example, be a C 1 -C 12 alkyl; R 14 is, for example, is hydrogen; Y is C 1 ~ C 12 alkylene, C 4 -C 8 alkenylene, C 4 -C 8 alkynylene or whether cyclohexylene, or -O -, - S- or -NR 15 - by one or phenylene or C 4 to more interrupted -C 40 alkylene or Y is of the formula (III), ( IV), (V), (VI), (VII), (VIII), (IX), (X) or (XI); Y 1 is a group represented by Y except for formula (V) As defined: R 15 is hydrogen, C 1 -C 12 alkyl or phenyl; and R 16 is hydrogen, CH 2 OH or C 1 -C 4 alkyl, a compound of formula (I) And their mixtures with other photoinitiators are suitable for photopolymerizing compounds having an ethylenically unsaturated double bond. |