Water-reducible urethane oligomers

Details Water-reducible urethane oligomers Water-reducible urethane oligomers

C - Chemistry, Metallurgy

08

G

C08G 18/61 (2006.01) B32B 7/12 (2006.01) C08G 18/28 (2006.01) C09J 175/04 (2006.01)

Patent

CA 2446495

Water-dispersible urethane oligomers formed by reacting a polyisocyanate with silicone, reactant, and optionally a reactive substance, wherein either one, or more, of the ingredients have single isocyanate-reactive group and ionizable group, or wherein the silicone, reactant and substance have two, or more, isocyanate-reactive groups and the sum of the isocyanate-reactive groups is substantially greater than the number of isocyanate.

L'invention concerne des oligomères d'uréthane dispersibles dans l'eau formés par réaction d'un polyisocyanate avec de la silicone, un réactif et, facultativement, une substance réactive. Un ou plusieurs ingrédients possèdent un seul groupe réagissant avec l'isocyanate et un groupe ionisable ou la silicone, le réactif et la substance ont deux groupes réagissant avec l'isocyanate, et la somme des groupes réagissant avec l'isocyanate est pratiquement supérieure au nombre de groupes d'isocyanate.

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