Radiation curable polyurethane dispersions

Details Radiation curable polyurethane dispersions Radiation curable polyurethane dispersions

C - Chemistry, Metallurgy

08

G

C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/66 (2006.01) C08G 18/67 (2006.01) C09D 175/16 (2006.01)

Patent

CA 2607274

A polyurethane dispersion is provided. The polyurethane dispersion includes 10 to 60 percent by weight of a polymeric polyol, 5 to 40 percent by weight of at least one compound containing both isocyanate reactive groups and meth(acrylate) groups wherein said compound comprises 1 to 30 percent by weight of at least one hydroxyl alkyl acrylate, 1 to 15 percent by weight of at least one compound comprising both isocyanate reactive groups and carboxyl groups, and 10 to 50 percent by weight of at least one isocyanate functional group.

L'invention concerne une dispersion de polyuréthanne. La dispersion de polyuréthanne comprend entre 10 et 60 % en poids d'un polyol polymère, entre 5 et 40 % en poids d'au moins un composé renfermant des groupes réactifs d'isocyanate et des groupes de méth(acrylate), le composé comprenant entre 1 et 30 % en poids d'au moins un hydroxyl alkyl acrylate, entre 1 et 15 % en poids d'au moins un composé comprenant aussi bien des groupes réactifs d'isocyanate et des groupes de carboxyl et entre 10 et 50 % en poids d'au moins un groupe fonctionnel d'isocyanate.

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