Process for dispersing polymer gel particles in aqueous medium

Details Process for dispersing polymer gel particles in aqueous medium Process for dispersing polymer gel particles in aqueous medium

1985-06-27

1988-10-18

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 44, 524 45, 524 46, 524 47, 524555, 524556, 524612, 524916, 528499, 528502, 210698, 210701, 2523153, 2523154, C08F 624, C08L 126, B01F 1752

Patent

active

047788364

ABSTRACT:
A water soluble or swellable polymer gel is dispersed into a liquid phase to form a fluid composition and is worked while in that composition. The liquid phase is an aqueous solution of an equilibrating agent that substantially prevents aggregation of the particles or dissolution of the polymer during the working. The working may be, for instance, milling, extraction of impurities, extraction of water, transportation or chemical modification. Preferred equilibrating agents are sodium polyacrylate and polydiallyl dimethyl ammonium chloride.

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patent: 3960584 (1976-06-01), Savage
patent: 3976611 (1976-08-01), Aloia
patent: 3985651 (1976-10-01), Newman
patent: 4380600 (1983-04-01), Hosoda et al.
patent: 4487866 (1984-12-01), Almond et al.
patent: 4517098 (1985-05-01), Hann et al.
patent: 4525515 (1985-06-01), Peignier
patent: 4559156 (1985-12-01), Greaves et al.

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