Acylphosphine sulfides, their preparation and a process for...

Details Acylphosphine sulfides, their preparation and a process for... Acylphosphine sulfides, their preparation and a process for...

C - Chemistry, Metallurgy

08

K

400/1, 402/1, 96

C08K 5/50 (2006.01) C07F 9/53 (2006.01) C08F 2/50 (2006.01) C08G 63/52 (2006.01) C08K 5/5398 (2006.01) G03F 7/029 (2006.01)

Patent

CA 1193785

Abstract of the disclosure: Acylphosphine sulfides of the formula Image where R1 is alkyl, cycloalkyl or an unsubstituted or substituted phenyl, naphthyl or heterocyclic radical; R2 has the meanings of R1 and can be identical to or different from R1, or is alkoxy, unsubstituted or sub- stituted phenoxy or phenoxyalkyl, or R1 or R2 are linked together to form a ring, which may contain further alkyl substituents and fused-on benzene rings; R3 is alkyl, a cycloaliphatic radical, substituted phenyl, an unsub- stituted or substituted naphthyl or heterocyclic radical or the group Image where X is unsubstituted or substituted phenylene or an aliphatic or cycloaliphatic divalent radical; and where one or more of R1, R2 and R3 may be olefinically unsat- urated. These acylphosphine sulfides can be prepared from acylphosphines and sulfur and can be used as photo- initiators in photopolymerizable compositions,

384597

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