Hydrophobically modified cationic copolymers

Details Hydrophobically modified cationic copolymers Hydrophobically modified cationic copolymers

C - Chemistry, Metallurgy

08

F

C08F 220/36 (2006.01) C04B 24/24 (2006.01) C08L 33/14 (2006.01)

Patent

CA 2666082

The invention relates to a hydrophobically modified cationic copolymer that comprises at least three different structural units. The water retention in aqueous building material systems on the basis of hydraulic binders, such as cement, can be greatly improved especially in combination with the use of anionic surfactants and even in the event of high salt loads.

L'invention concerne un copolymère cationique modifié de façon hydrophobe présentant au moins trois unités structurelles différentes. C'est notamment en combinaison avec des tensioactifs anioniques qu'il est possible d'augmenter considérablement la rétention d'eau dans des systèmes de matériaux de construction aqueux à base de liants hydrauliques tels que du ciment, même en cas de salinité élevée.

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