Process for producing a polymer water-in-oil emulsion

Details Process for producing a polymer water-in-oil emulsion Process for producing a polymer water-in-oil emulsion

C - Chemistry, Metallurgy

08

F

400/9039

C08F 2/22 (2006.01) C08F 2/32 (2006.01)

Patent

CA 1205935

A PROCESS FOR PRODUCING A POLYMER WATER-IN OIL EMULSION ABSTRACT OF THE DISCLOSURE Described herein is a semi-continuous process for producing a polymer water-in-oil emulsion which process comprises: (a) combining: (i) an aqueous solution comprising at least one water-soluble monomer and (ii) a mixture comprising a hydrophobic liquid, a hydrophobic monomer and an oil-soluble surfactant; (b) homogenizing the mixture from (a) to form a water-in-oil emulsion; (c) deoxygenating said homogenized water-in-oil emulsion; (d) continually adding the homogenized water-in-oil emulsion to a reactor while adding thereto a deoxygenated initiator solution; (e) heating the mixture from (d) under polymerization conditions so as to form a polymer water-in-oil emulsion; and (f) recovering a polymer water-in-oil emulsion. D-13301-C

409415

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