Cement dispersant and methods of making and using the same

Details Cement dispersant and methods of making and using the same Cement dispersant and methods of making and using the same

C - Chemistry, Metallurgy

08

F

C08F 220/04 (2006.01) C08F 216/08 (2006.01) C08F 216/12 (2006.01)

Patent

CA 2525791

The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.

L'invention concerne un dispersant de ciment qui est un produit de copolymérisation d'un premier monomère (A) comprenant un acide carboxylique, d'un second monomère (B) comprenant un sulfate d'alcool allylique alcoxylé, et éventuellement d'un troisième monomère (C) comprenant un alcool allylique alcoxylé. Ce dispersant pour ciment présente de propriétés améliorées de maintien de l'ouvrabilité et un effet amélioré de réduction de l'eau dans le ciment.

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