.alpha.-aminoacetophenones as photoinitiators

Details .alpha.-aminoacetophenones as photoinitiators .alpha.-aminoacetophenones as photoinitiators

C - Chemistry, Metallurgy

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C07C 225/16 (2006.01) C07D 209/86 (2006.01) C07D 295/104 (2006.01) C07D 295/108 (2006.01) C07D 295/112 (2006.01) C08F 2/50 (2006.01) G03F 7/031 (2006.01)

Patent

CA 1310639

Novel .alpha.-aminoacetophenones as photoinitiators Abstract Compounds of the formula I, II, III and IIIa Image II III Image Image IIIa in which Ar1 is an unsubstituted or substituted aromatic radical and at least one of the radicals R1 and R2 is an alkenyl, cycloalkenyl or arylmethyl group, are effective photoinitiators for photopolymeri- zation of unsaturated compounds. They are particularly suitable for photocuring of pigmented systems.

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