B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 17/00 (2006.01) C08J 3/05 (2006.01) C08K 5/09 (2006.01) C08L 101/00 (2006.01) C09K 8/06 (2006.01) C09K 8/12 (2006.01) C09K 8/20 (2006.01) C09K 8/24 (2006.01)
Patent
CA 2111406
The present invention provides a water dispersible particulate polymer composition having improved water dispersibility comprising a water soluble particulate polymer which has been contacted with a finely divided particulate dispersant comprised of at least one insoluble or sparingly soluble fatty acid or salt thereof so that the particles of the water soluble particulate polymer have dispersed thereon said finely divided particulate dispersant, a method for making said water soluble particulate polymer composition, and the use thereof in viscosifying water-based fluids.
La présente invention porte sur une préparation polymérique particulaire dispersible dans l'eau possédant une hydrodispersibilité accrue, constituée d'un polymère particulaire hydrosoluble ayant été mis en contact avec un dispersant particulaire pulvérulent comprenant au moins un acide gras insoluble ou peu soluble, ou un sel d'un tel acide, de sorte que les particules du polymère particulaire hydrosoluble aient été dispersées sur ledit dispersant particulaire pulvérulent; l'invention porte aussi sur une méthode de fabrication de ladite préparation polymérique particulaire hydrosoluble et sur son utilisation pour modifier la viscosité des liquides à base d'eau.
Osler Hoskin & Harcourt Llp
Phillips Petroleum Company
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