发明名称 |
Coating process for composite reverse osmosis membranes |
摘要 |
A process for preparing reverse osmosis membranes is disclosed. A microporous hollow support fiber is passed through a solution of a monomer capable of undergoing condensation polymerization and such as m-phenylene diamine up through a capillary into a sedond less dense solution of a second monomer capable of undergoing condensation with said first monomer, such as trimesoyl chloride or cyclohexane-1,3,5-tricarbonyl chloride. The resulting fiber has a polymeric film deposited thereon which is effective as a reverse osmosis membrane.
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申请公布号 |
US4980061(A) |
申请公布日期 |
1990.12.25 |
申请号 |
US19890401474 |
申请日期 |
1989.08.29 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
TADROS, SAFWAT E.;TREHU, YVES M. |
分类号 |
B01D69/08;B01D69/12;B05D7/24 |
主分类号 |
B01D69/08 |
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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