Acylphosphine compounds and their use as photoinitiators

Details Acylphosphine compounds and their use as photoinitiators Acylphosphine compounds and their use as photoinitiators

1984-11-20

1988-01-12

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

544108, 544109, 544110, 558 70, 26050121, 2605024R, 2605025R, 546 22, C07F 932, C07F 940, C07F 965

Patent

active

047192976

ABSTRACT:
Acylphosphine compounds of the formula I ##STR1## where X is oxygen, sulfur or an electron pair, R.sup.1 is R.sub.4 or OR.sup.4, R.sup.2 is --OM, where M is a monovalent cation, R.sup.3 is aryl which is substituted at least at the two positions ortho to the carbonyl group, and R.sup.4 is hydrogen, alkyl or aryl, are very effective photoinitiators for photopolymerizable materials, such as coating compositions, finishes, printing inks, unsaturated polyesters, recording media and preferably aqueous polymer dispersions or solutions.

REFERENCES:
patent: 4257859 (1981-03-01), Fischer et al.
patent: 4265723 (1981-05-01), Hesse et al.

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