发明名称 |
Polymerization of water soluble polymers in water-in-oil latex form to produce emulsions containing high polymer solids levels and low oil levels |
摘要 |
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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申请公布号 |
US4212784(A) |
申请公布日期 |
1980.07.15 |
申请号 |
US19790036117 |
申请日期 |
1979.05.04 |
申请人 |
NALCO CHEMICAL |
发明人 |
BINGHAM, MARY E;PHILLIPS, KENNETH G |
分类号 |
C08L33/02;(IPC1-7):C08L33/02 |
主分类号 |
C08L33/02 |
代理机构 |
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代理人 |
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地址 |
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