发明名称 |
Method for manufacturing of multilayer reverse osmosis membrane of polyamide-urea |
摘要 |
The present invention is directed to methods for using an improved reverse osmosis membrane that shows surprisingly improved solute rejection and permeation properties. The membrane includes a separating layer of a polyamideurea formed in situ by reaction of isocyanate-substituted acyl chloride and a diamine-treated microporous substrate.
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申请公布号 |
US5084182(A) |
申请公布日期 |
1992.01.28 |
申请号 |
US19910695899 |
申请日期 |
1991.05.06 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
ARTHUR, SAMUEL D. |
分类号 |
B01D69/12;B01D71/54;B01D71/56;C08G18/32;C08G18/71;C08G18/77;(IPC1-7):B01D61/02 |
主分类号 |
B01D69/12 |
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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