发明名称 |
PREPARATION OF POLYETHERSULFONE MEMBRANES |
摘要 |
A method for making a skinless essentially symmetrical hydrophobic polysulfone microporous membrane by the steps of (a) forming a casting solution containing (i) a dissolved polyethersulfone polymer, (ii) a solvent for the polyethersulfone polymer, and (iii) a lower aliphatic glycol; (b) coating a substrate with the casting composition; (c) exposing the coated substrate to atmospheric conditions; (d) passing the exposed coated substrate into a precipitation bath to precipitate the membrane, the precipitation bath containing a lower aliphatic glycol and water; (e) rinsing the membrane; and (f) drying the membrane.
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申请公布号 |
WO0045942(A1) |
申请公布日期 |
2000.08.10 |
申请号 |
WO2000US03263 |
申请日期 |
2000.02.08 |
申请人 |
OSMONICS, INC. |
发明人 |
GREENWOOD, JOHN, M.;JOHNSON, JAMES, S.;WITHAM, MICHAEL |
分类号 |
B01D67/00;B01D71/68;(IPC1-7):B01D67/00 |
主分类号 |
B01D67/00 |
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