Non-volatile phenylglyoxalic esters

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making

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430325, 4302811, 522 8, 522 37, 549465, 560 9, 560 53, G03C 1492, C08F 246, C07D30793, C07C321100

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060486600

ABSTRACT:
Compounds of the formula I ##STR1## in which R.sub.1 and R.sub.2 independently of one another are, for example, a group of the formula II ##STR2## R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 independently of one another are, for example, hydrogen, C.sub.1 -C.sub.12 alkyl, OR.sub.8, SR.sub.9, NR.sub.10 R.sub.11, halogen or phenyl; R.sub.8, R.sub.9, R.sub.10, R.sub.11 independently of one another are, for example, hydrogen or C.sub.1 -C.sub.12 alkyl; R.sub.12 is, for example, C.sub.1 -C.sub.8 alkyl; R.sub.13 is, for example, C.sub.1 -C.sub.12 alkyl; R.sub.14 is, for example, hydrogen; Y is C.sub.1 -C.sub.12 alkylene, C.sub.4 -C.sub.8 alkenylene, C.sub.4 -C.sub.8 alkynylene or cyclohexylene, or is phenylene or C.sub.4 -C.sub.40 alkylene interrupted one or more times by --O--, --S-- or --NR.sub.15 --, or Y is a group of the formula III, IV, V, VI, VII, VIII, IX, X or XI ##STR3## Y.sub.1 is as defined for Y with the exception of the formula V; R.sub.15 is hydrogen, C.sub.1 -C.sub.12 alkyl or phenyl; and R.sub.16 is hydrogen, CH.sub.2 OH or C.sub.1 -C.sub.4 alkyl; and mixtures of these compounds with further photoinitiators are suitable for photopolymerizing compounds having ethylenically unsaturated double bonds.

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Hu et al., Tetrahedron, vol. 53, No. 8, pp. 2751-2766, Feb. 24, 1997.

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