发明名称 |
Process and composition for breaking emulsions |
摘要 |
A process for breaking an oil-in-water or a water-in-oil emulsion comprising treating the emulsion with a demulsifier prepared by; (a) forming a water soluble polyurea by reacting a polyisocyanate and a polyamine in a non-protonic liquid carbonyl solvent; and (b) forming the demulsifier by reacting the water soluble polymer with an alkylating agent.
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申请公布号 |
US4016101(A) |
申请公布日期 |
1977.04.05 |
申请号 |
US19760665748 |
申请日期 |
1976.03.11 |
申请人 |
W. R. GRACE & CO. |
发明人 |
MARKOFSKY, SHELDON B.;WOOD, LOUIS L. |
分类号 |
B01D17/04;B01D17/05;C08F6/14;C08G18/08;C08G18/10;C08G18/32;C08G18/48;C10G33/04;(IPC1-7):B01D17/04 |
主分类号 |
B01D17/04 |
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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