Polymerization of water soluble polymers in water-in-oil latex f

Details Polymerization of water soluble polymers in water-in-oil latex f Polymerization of water soluble polymers in water-in-oil latex f

1979-05-04

1980-07-15

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296H, C08L 3302

Patent

active

042127840

ABSTRACT:
A method of producing a water-in-oil emulsion of ammonium polyacrylate which comprises polymerizing a water-in-oil emulsion of ammonium acrylate in the presence of a water-in-oil emulsifier, and a free radical polymerization catalyst with the amount of oil initially present in said emulsion being at least 15% by weight, continuing said polymerization until substantially all of the ammonium acrylate has polymerized to form ammonium polyacrylate, allowing a major portion of the oil in the oil phase of the emulsion to separate as a polymer-free upper layer, thus leaving as a lower layer a water-in-oil emulsion of ammonium polyacrylate, which emulsion contains less than 10% by weight of oil. Also described are the polymeric emulsions produced using the above described method.

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patent: 4052353 (1977-10-01), Scanley

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