Polymer compositions

Details Polymer compositions Polymer compositions

C - Chemistry, Metallurgy

08

J

C08J 3/05 (2006.01) C08J 3/03 (2006.01) C08L 33/06 (2006.01) C08L 33/08 (2006.01) C08L 39/08 (2006.01) C10L 1/10 (2006.01) C10M 157/00 (2006.01) C10M 161/00 (2006.01) C10M 173/02 (2006.01) C10L 1/12 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/24 (2006.01)

Patent

CA 2290345

Polymer compositions comprising a dispersion of at least one polymer A obtained by polymerisation of at least one olefinically unsaturated compound, which polymer contains aliphatic hydrocarbon side chains of at least 10 carbon atoms, in a continuous aqueous phase comprising a surfactant and at least one polymer B which comprises a thixotropic hydrophilic polymer, a process for the preparation of the compositions, and their use as pour point depressants.

L'invention concerne des compositions de polymères comprenant une dispersion d'au moins un polymère A obtenu par polymérisation d'au moins un composé oléfiniquement insaturé, ledit polymère contenant des chaînes latérales hydrocarbure aliphatique d'au moins 10 atomes de carbone, dans une phase continue aqueuse comprenant un tensioactif, et au moins un polymère B comprenant un polymère thixotrope hydrophile, un procédé de préparation des compositions et leur utilisation en tant qu'améliorants de point d'écoulement.

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