Adjuvant for hydraulic compositions

Details Adjuvant for hydraulic compositions Adjuvant for hydraulic compositions

C - Chemistry, Metallurgy

04

B

C04B 24/32 (2006.01) C04B 24/26 (2006.01) C04B 24/42 (2006.01)

Patent

CA 2641306

The invention relates to an adjuvant for a hydraulic binder composition comprising at least one cationic polymer and at least one anionic polymer, wherein at least one of these polymers has a comb-structure, in which the anionic polymer/cationic polymer mass ratio is between 99.9/0.1 and 60/40. It also relates to a process for preparing said composition and to its uses as a plasticizer.

L'invention vise un adjuvant pour composition de liant hydraulique comprenant au moins un polymère cationique et au moins un polymère anionique, au moins l'un de ces polymères présentant une structure de type peigne, dans lequel le rapport massique polymère anionique/polymère cationique est compris entre 99,9/0,1 et 60/40. Elle vise également un procédé pour sa préparation ainsi que ses utilisations à titre de plastifiant.

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