Oligomeric dispersant

Details Oligomeric dispersant Oligomeric dispersant

C - Chemistry, Metallurgy

08

L

C08L 71/00 (2006.01) C04B 24/32 (2006.01) C08L 77/00 (2006.01)

Patent

CA 2448508

A composition that is a reaction product of two or three moieties. The first moiety (A) is a nonpolymeric, multi-functional moiety or combination of mono- or multifunctional moieties that adsorbs onto a cementitious particle. The second required moiety (C) is a linear or branched water soluble, nonionic polymer that is capable of providing dispersing capability. A third moiety (B), if present, is a nonpolymeric moiety disposed between the first and second moiety, to connect the first and second moieties.

L'invention concerne une composition qui est le produit de réaction de deux ou trois groupements. Le premier groupement (A) est un groupement multifonctionnel non polymérique ou une combinaison de de groupements mono- ou multifonctionnels s'adsorbant sur une particule cimentaire. Le deuxième groupement nécessaire (C) est un polymère hydrosoluble non ionique linéaire ou ramifié possédant un pouvoir de dispersion. Le troisième groupement (B), s'il est présent, est un groupement non polymérique placé entre le premier et le second groupement pour relier ceux-ci.

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