Photopolymerizable compositions containing an oxonol dye
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United States of America Patent
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Nov 8, 2011
Grant Date -
Apr 30, 2009
app pub date -
Oct 26, 2007
filing date -
Oct 26, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
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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