| 发明名称 |
MULTILAYER REVERSE OSMOSIS MEMBRANE OF POLYAMIDE-UREA |
| 摘要 |
The present invention is directed to 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. |
| 申请公布号 |
ZA9106032(B) |
申请公布日期 |
1993.04.28 |
| 申请号 |
ZA19910006032 |
申请日期 |
1991.07.31 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SAMUEL DAVID ARTHUR |
| 分类号 |
B01D61/02;B01D69/12;B01D71/54;B01D71/56;B01J31/02;C07B61/00;C07C263/10;C07C265/12;C08G18/32;C08G18/71;C08G18/77;C08J9/28 |
主分类号 |
B01D61/02 |
| 代理机构 |
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