Photoinitiator composition containing bis ketocoumarin dialkylam

Details Photoinitiator composition containing bis ketocoumarin dialkylam Photoinitiator composition containing bis ketocoumarin dialkylam

1988-11-16

1990-01-16

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

522 14, 522 2, 430945, 430926, 430919, 430918, 430920, G03C 168, G03C 170

Patent

active

048943142

ABSTRACT:
Photoinitiator compositions are disclosed which contain 3,3'-carbonyl bis(7-diethylaminocoumarin); an alkyl ester of a p-dialkylamino benzoic acid; and either camphorquinone or a 2,4,5-triphenylimidazolyl dimer. Photoinitiators are also provided which contain 3,3'-carbonyl bis(7-diethylaminocoumarin); an alkyl ester of a p-dialkylamino benzoic acid; camphorquinone and a 2,4,5-triphenylimidazolyl dimer. These latter photoinitiators are particularly useful in photopolymerizable compositions which are polymerized by exposure to visible laser light.

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