Photopolymerization co-initiator compositions comprising amine-s

Details Photopolymerization co-initiator compositions comprising amine-s Photopolymerization co-initiator compositions comprising amine-s

1979-11-16

1981-07-14

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

20415918, 20415923, 252426, 430915, 430919, 430920, 430923, G03C 168

Patent

active

042787513

ABSTRACT:
A co-initiator for use in an improved photopolymerization composition, element and method is disclosed. The photopolymerizaton composition comprises an addition-polymerizable compound containing ethylenic 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 ##STR1## wherein Q.sup.1 and Q.sup.2 are each independently hydrogen; alkyl, thioalkyl or alkoxy containing from 1 to about 5 carbon atoms; aryl or aryloxy or benzoyloxy containing from about 6 to 10 carbon atoms; hydroxy; or halogen; or together Q.sup.1 or Q.sup.2 are the necessary atoms to complete a fused heterocyclic or aromatic ring containing from about 4 to 6 ring atoms; and Q.sup.3 is hydrogen or alkyl containing from 1 to about 5 carbon atoms.

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patent: 3573922 (1971-04-01), Rusi
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Ledwith, J. Oil Co. Chem. Assoc., vol. 59, pp. 157-165 (1976).
J. of Amer. Chem. Soc., vol. 97, pp. 4139-4141, Jul. 1975, Libman.
Hackh's Chemical Dictionary 25 and 192, 1969.
Murov, handbook of Photochemistry pp. 203-206, 1973.

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