Polymerizable composition containing pyrromethene type coloring

Details Polymerizable composition containing pyrromethene type coloring Polymerizable composition containing pyrromethene type coloring

1994-04-08

1996-03-12

Berman, Susan W.

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

Synthetic resins

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

522 29, 522182, 522184, 522121, C08F 250, C08F 414, C08F 4649

Patent

active

054986419

ABSTRACT:
A photopolymerizable composition comprising at least an addition polymerizable compound having at least one ethylenically unsaturated double bond and a photopolymerization initiator system, which system comprises (a) a sensitizer of the formula (I): ##STR1## wherein each of R.sup.1 to R.sup.6 is hydrogen, halogen, alkyl, aryl, aralkyl, acyl, alkoxycarbonyl, optionally substituted hydrocarbon ring, optionally substituted heterocyclic residue or --SO.sub.3 --R.sup.8, wherein R.sup.8 is hydrogen, alkyl, aryl, aralkyl, alkali metal, or quaternary ammonium, R.sup.7 is hydrogen, alkyl, aryl, aralkyl, optionally substituted hydrocarbon ring, or optionally substituted heterocyclic group, each of X.sup.1 and X.sup.2 is halogen, alkyl, aryl, aralkyl, optionally substituted hydrocarbon ring, or optionally substituted heterocyclic group, and (b) a titanocene compound.

REFERENCES:
patent: 4774339 (1988-09-01), Haugland et al.
patent: 5011755 (1991-04-01), Rodhe et al.
patent: 5187288 (1993-02-01), Kang et al.

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