Stabilized water-in-oil emulsions of a polyacrylate

Details Stabilized water-in-oil emulsions of a polyacrylate Stabilized water-in-oil emulsions of a polyacrylate

1983-02-15

1986-07-01

Henderson, Christopher A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524211, 524419, 524420, C08K 330

Patent

active

045981191

ABSTRACT:
The stability of a water-soluble acrylate polymer such as sodium polyacrylate in the disperse aqueous phase of a water-in-oil emulsion is improved by the addition to the emulsion of a water-soluble thiosulfate, thiourea, nitrite or thiocyanate, e.g., sodium thiosulfate, in an amount sufficient to improve the viscosity retention of the polymer in an aqueous solution. The resulting emulsion containing the stabilized polymer can be stored for extended periods and then be usefully employed as a flocculant, paper additive and in other conventional applications for said emulsions.

REFERENCES:
patent: 3218283 (1965-11-01), Miller
patent: 3234163 (1966-02-01), Schurz
patent: 3753939 (1973-08-01), Von Euler-Chelpin

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