Stability of water-in-oil emulsions utilizing minor amounts...

Details Stability of water-in-oil emulsions utilizing minor amounts... Stability of water-in-oil emulsions utilizing minor amounts...

B - Operations, Transporting

01

F

400/1127, 400/64

B01F 17/52 (2006.01) B01F 3/08 (2006.01) C08J 3/09 (2006.01) C08L 33/00 (2006.01)

Patent

CA 1058785

ABSTRACT OF THE DISCLOSURE An additive and method of stabilizing and decreasing sediment in a water-in-oil emulsion where the aqueous discontinuous phase contains a water-soluble vinyl addition polymer, comprising an oil-soluble polymer added to the continuous phase in the amount of about 0.1 to 1.0% by weight based on the total polymer emulsion. Preferred water-in-oil emulsions in- clude those containing polyacrylamide, polyacrylic acid predominantly in salt form, and copolymers thereof; and preferred oil-soluble polymers include polyisobutylene, polybutadiene, Betaprene H*, poly(t)butylstyrene, and natural rubber. The additive and method are useful for redispersing such emulsions.

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