发明名称 |
SEMIPERMEABLE ENCAPSULATED MEMBRANES, PROCESS FOR THEIR MANUFACTURE AND THEIR USE |
摘要 |
<p>Semipermeable membranes of a porous polymeric substrate whose external and all internal surfaces (pores) are encapsulated by a semipermeable thin film of a hydrophilic polymer are provided. The encapsulating film consists of at least one layer of said polymer which is cross-linked/stabilized by polyfunctional compounds containing at least two functional (reactive) groups. The membrane substrate is optionally pretreated - before the encapsulation step with polyfunctional compounds. The new membranes can be used in ultrafiltration and reverse osmosis processes. They are solvent-, pressure- and temperature-resistant and show good separation capacities, e,g. for separating organic compounds from salt solutions.</p> |
申请公布号 |
CA1227975(A) |
申请公布日期 |
1987.10.13 |
申请号 |
CA19830443689 |
申请日期 |
1983.12.19 |
申请人 |
ALIGENA AG |
发明人 |
LINDER, CHARLES;AVIV, GERSHON;PERRY, MORDECHAI;KOTRARO, REUVEN |
分类号 |
B01D67/00;B01D69/12;B01D71/60;(IPC1-7):B01D13/04 |
主分类号 |
B01D67/00 |
代理机构 |
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代理人 |
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地址 |
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