发明名称 |
Polymerization process |
摘要 |
The invention provides a process for producing a water-in-oil emulsion of a water-soluble polyacrylamide or polyacrylic acid polymer or copolymer by the inverse emulsion process characterized in that there is used as the emulsifying agent for the water-in-oil emulsion a water-insoluble, oil-soluble surface active agent of the formula (I): X-Y-ZI or a functional derivative thereof, wherein X- represents a saturated or unsaturated hydrocarbon chain containing from 30 to 500 carbon atoms, -Y- represents a succinic anhydride residue carried terminally upon the group X-, and -Z represents a hydrophilic group carried by the group -Y-.
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申请公布号 |
US4786681(A) |
申请公布日期 |
1988.11.22 |
申请号 |
US19860895851 |
申请日期 |
1986.08.12 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BAKER, ALAN S.;BUTTERWORTH, STEPHEN J.;JHEETA, RAVINDER K. |
分类号 |
B01J13/00;B01F17/00;B01F17/52;C08F2/32;(IPC1-7):C08F2/32;C08L33/02 |
主分类号 |
B01J13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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