Photopolymerizable compositions containing an oxonol dye

Details Photopolymerizable compositions containing an oxonol dye Photopolymerizable compositions containing an oxonol dye

C - Chemistry, Metallurgy

08

L

C08L 33/06 (2006.01) C08F 2/44 (2006.01) C08F 2/48 (2006.01) C08K 5/3462 (2006.01) C09B 69/10 (2006.01) C09D 4/02 (2006.01) C09J 4/02 (2006.01) C09J 5/00 (2006.01)

Patent

CA 2641282

The invention relates to photopolymerizable compositions containing an oxonol dye, which compositions cure by exposure to ultraviolet and/or visible radiation and whose visible color is substantially reduced during exposure. More particularly, the invention pertains to photopolymerizable compositions comprising a pyridin-2,6--dione oxonol dye in an admixture of a polymerizable component and a photopolymerization initiator. Such compositions find use as adhesives, coatings, and the like. The disappearance of the visible color of the oxonol dye acts as an indicator of full cure of a photopolymerizable composition.

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