| 摘要 |
PROBLEM TO BE SOLVED: To provide a water soluble polymer emulsion that is a water-in-oil emulsion type polymer flocculant, has an excellent flocculating ability and shows little change in physical properties after a long period of storage. SOLUTION: The water soluble polymer emulsion is obtained by mixing (A) a water soluble vinyl monomer, (B) water, (C) an oily substance comprising at least one kind of hydrocarbon, (D) at least one kind of surfactant in the amount and with an HLB sufficient enough for the formation of emulsion, and (E) an ionic water soluble polymer, emulsifying the mixture by a vigorous agitation, and polymerizing the mixture. COPYRIGHT: (C)2004,JPO
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