Photopolymerizable compositions comprising alkoxyphenyl-substitu

Details Photopolymerizable compositions comprising alkoxyphenyl-substitu Photopolymerizable compositions comprising alkoxyphenyl-substitu

1996-02-14

1998-06-16

Lesmes, George F.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 18, 4302811, 430916, 430923, C08F 246

Patent

active

057671699

ABSTRACT:
A photopolymerizable composition comprising (a) at least one ethylenically unsaturated photopolymerizable compound, and (b) alkoxyphenyl-substituted bisacylphosphine oxides of the formula I ##STR1## in which R.sub.1 and R.sub.2 are identical or different and are a radical of the formula II ##STR2## in which R.sub.4 and R.sub.5 independently of one another are C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.12 alkoxy, and
R.sub.6, R.sub.7 and R.sub.8 independently of one another are hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkoxy or halogen,
R.sub.3 is a radical of the formula III ##STR3## in which R.sub.9 is C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkyl, C.sub.5 -C.sub.6 cycloalkyl, phenyl, naphthyl, phenyl-C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.12 alkenyl, --CF.sub.3 or ##STR4## or R.sub.9 is a radical of the formula IV or V ##STR5## in which X is for example C.sub.1 -C.sub.16 alkylene, C.sub.4 -C.sub.12 alkenylene or is xylylene,
R.sub.10 is for example hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.12 alkenyl, cyclopentyl, cyclohexyl, phenyl with 1 or 2 C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy groups, or is C.sub.1 -C.sub.4 alkoxy,
R.sub.11 is hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.12 alkenyl, cyclopentyl, cyclohexyl, phenyl, or is C.sub.1 -C.sub.4 alkoxy, or is a radical of the formula VI ##STR6## or R.sub.9 and R.sub.11, in the formula III together are ethylene, --CH.sub.2 CR.sub.14 R.sub.15 -- or --C(CH.sub.3).sub.2 CH.dbd.CH--,
or
R.sub.10 and R.sub.11, together with the atoms to which they are attached, for example form a benzene ring,
R.sub.12 is hydrogen or C.sub.1 -C.sub.4 alkoxy,
R.sub.13 is C.sub.1 -C.sub.4 alkyl,
R.sub.14 and R.sub.15 independently of one another are hydrogen, C.sub.1 -C.sub.8 alkyl, phenyl or --CH.sub.2 OR.sub.13, or R.sub.14 and R.sub.15, together with the carbon atom to which they attached, form a C.sub.5 -C.sub.6 cycloalkyl ring,
Y is for example a single bond, --CR,.sub.6 R.sub.17 -- or --CH.dbd.CH--, R.sub.16 is hydrogen, methyl or ethyl,
R.sub.17 is hydrogen or C.sub.1 -C.sub.4 alkyl,
R.sub.18 is hydrogen, C.sub.1 -C.sub.12 alkyl or phenyl, and
m is a number from 2-12, with the proviso that if the radical --OR.sub.9 in the formula III is in the p-position of the phenyl ring and R.sub.9 is methyl, at least one of the radicals R.sub.10, R.sub.11 and R.sub.12 is not hydrogen, are suitable for the photopolymerization of compounds containing ethylenically unsaturated bonds.

REFERENCES:
patent: 4737593 (1988-04-01), Ellrich et al.
patent: 4792632 (1988-12-01), Ellrich et al.
patent: 4868091 (1989-09-01), Boettcher et al.
patent: 5100929 (1992-03-01), Jochum et al.
Derwent Abstract 91-269010/37 of EP-A-446175.

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