Water-dispersible hydrophobic thickening agent

Details Water-dispersible hydrophobic thickening agent Water-dispersible hydrophobic thickening agent

C - Chemistry, Metallurgy

08

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31/21, 134/55, 4

C08L 57/00 (2006.01) C08L 33/26 (2006.01) C09D 7/00 (2006.01) C09K 8/035 (2006.01) C09K 8/588 (2006.01) C09K 8/62 (2006.01) C10M 173/02 (2006.01) C08L 71/02 (2006.01)

Patent

CA 1171188

ABSTRACT An aqueous liquid medium having increased low shear viscosity as provided by dispersing into the aqueous medium (1) a water-soluble polymer having pen- dant hydrophobic groups, e.g., an acrylamide/dodecyl acrylate copolymer, and (2) a water-dispersible surfac- tant, e.g., sodium oleate, or dodecyl polyethyleneoxy glycol monoether. The thickened aqueous medium is suitably employed in application requiring viscous liquids which retain their viscosity when subjected to shear, heat or high electrolyte (salt) concentrations. Such applications include uses in enhanced oil recovery processes, as fluid mobility control agents, fracturing fluids and drilling muds, as well as hydraulic fluids and lubricants in many applications.

394913

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