Enhanced dye durability through controlled dye environment

Details Enhanced dye durability through controlled dye environment Enhanced dye durability through controlled dye environment

C - Chemistry, Metallurgy

09

K

C09K 11/06 (2006.01) C08J 3/20 (2006.01) C09B 5/62 (2006.01) C09B 62/004 (2006.01) C09B 67/00 (2006.01) C09D 5/22 (2006.01)

Patent

CA 2305531

An interpenetrating polymer network (IPN) or semi-interpenetrating polymer network (semi-IPN) comprises a first phase which is continuous and comprises a flexible polymer and a second phase which is a fluorescent or nonfluorescent durable dispersed or continuous phase and comprises a dye and a polymer, wherein the polymer enhances durability of the dye. Such networks are particularly useful in fluorescent traffic signs or safety devices or in pavement marking tape or paint.

L'invention porte sur un réseau de polymères interpénétrants (IPN) ou semi-interpénétrants (semi-IPN) qui comporte une première phase continue constituée d'un polymère souple, et une deuxième phase fluorescente ou non, durable, dispersée ou continue, constituée d'un colorant et d'un polymère qui en renforce la durabilité. De tels réseaux sont particulièrement utiles pour la fabrication de panneaux routiers fluorescents, de dispositifs de sécurité, ou de bandes ou peintures pour le marquage de la chaussée.

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