Mono- and di-acylphosphine oxides

Details Mono- and di-acylphosphine oxides Mono- and di-acylphosphine oxides

1991-08-28

1993-06-08

McCamish, Marion E.

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

Synthetic resins

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

568 15, 522 81, 522100, 522104, 522121, 522 18, 522 64, C08F 250, C07F 902

Patent

active

052180093

ABSTRACT:
Compounds of the formula I ##STR1## in which at least one of the radicals R.sub.1, R.sub.2 and R.sub.3 is a substituted alkyl radical or cycloalkyl radical, or R.sub.1 and R.sub.2 together with the phosphorus atom form a monocyclic or tricyclic ring, are effective photoinitiators for the photopolymerization of ethylenically unsaturated compounds.

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