Photopolymerization co-initiator compositions comprising amine-substituted ketocoumarins and certain acetic acid derivatives activators
CA 1137696 A · Owner: Eastman Kodak Company · Inventors: Payne, Kenneth L.; Farid, Samir Y.; Specht, Donald P.
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A co-initiator for use in an improved photopolymerizatior composition, element and method is disclosed. The photopolymerization composition comprises an additionpolymerizable compound containing etylenic unsaturation and the co-initiator which includes a photopolymerization activator and an amine-substituted ketocoumarin sensitizer having an absorption maximum between about 350 and about 550 nm; said activator having the structure (I) , or, (II) , wherein Q1 and Q2 are each independently hydrogen; alkyl thioalkyl or alkoxy containing from 1 to about 5 carbon atoms; aryl or aryloxy containing from about 6 to 10 carbon atoms; hydroxy; or halogen; or together Q1 and Q2 are the necessary atoms …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
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- Granted December 14, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 1999.
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