Stabilization of fluorescent dyes in vinyl articles using...

Details Stabilization of fluorescent dyes in vinyl articles using... Stabilization of fluorescent dyes in vinyl articles using...

C - Chemistry, Metallurgy

08

K

C08K 5/3435 (2006.01) B44F 1/04 (2006.01) C08L 27/06 (2006.01) C09B 57/14 (2006.01) C09B 67/18 (2006.01)

Patent

CA 2308253

A durable colored article having fluorescent properties comprises a substantially solventless polyvinyl chloride matrix, a thioxanthene fluorescent dye, and a secondary or tertiary hindered amine light stabilizer having a molecular weight less than about 1000 grams/mole. The invention has the advantage in that it provides a flexible polyvinyl chloride film that exhibits durable fluorescent colors.

Article à couleur durable doté de propriétés fluorescentes, qui comporte une matrice de chlorure de polyvinyle pratiquement exempte de solvant, un colorant fluorescent thioxanthène, et un photostabilisant à amines inhibées secondaires ou tertiaires, ayant un poids moléculaire inférieur à environ 1000 grammes/mole. La présente invention est avantageuse en ce qu'elle permet d'obtenir un film souple en chlorure de polyvinyle qui possède des couleurs fluorescentes durables.

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