Polymer mixture comprising a comb copolymer

Details Polymer mixture comprising a comb copolymer Polymer mixture comprising a comb copolymer

C - Chemistry, Metallurgy

08

F

C08F 222/08 (2006.01) C08F 8/12 (2006.01) C08F 8/14 (2006.01) C08F 222/10 (2006.01) C08F 222/40 (2006.01) C08L 35/06 (2006.01) C09D 135/06 (2006.01)

Patent

CA 2671827

The invention relates to a polymer mixture consisting of at least one comb copolymer (I) containing blocks of special structural units and at least one copolymer (Il) comprising polymerised, optionally substituted styrene and maleic anhydride units, the carboxyl groups of which are at least partly present as alkaline metal salts, earth alkaline metal salts or ammonium salts. The invention also relates to the use of said polymer mixtures as wetting agents and dispersants.

Mélange polymère constitué d'au moins un polymère en peigne I contenant des séquences d'unités structurales spéciales et d'au moins un copolymère II contenant des unités polymérisées et éventuellement substituées de styrène et d'acide maléique, dont les groupes carboxyle sont présents au moins en partie sous forme de sels de métal alcalin, de sels de métal alcalino-terreux ou de sels d'ammonium. La présente invention concerne également l'utilisation de ces mélanges polymères en tant qu'agents mouillants et dispersants.

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