Synergistic initiator compositions for the visible light...

Details Synergistic initiator compositions for the visible light... Synergistic initiator compositions for the visible light...

G - Physics

03

F

96/72

G03F 7/031 (2006.01) G03F 7/00 (2006.01)

Patent

CA 2000331

-15- SYNERGISTIC INITIATOR COMPOSITIONS FOR THE VISIBLE LIGHT CURE OF ETHYLENICALLY UNSATURATED COMPOSITIONS ABSTRACT A liquid composition which is photopolymerizable with visible light comprises a photopolymerizable ethylenically unsaturated liquid which is polymerizable by free-radical polymerization containing, based on the weight of the photopolymerizable ethylenically unsaturated material contained therein: (1) from about 0.1% to about 5% of a photoreducible phthalein dye; (2) from about 0.5% to about 10% of an aliphatic tertiary amine; and (3) from about 1% to about 8% of a ketonic photoinitiator.

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