| 发明名称 |
METHOD FOR PREPARING A MEMBRANE OF A FILM-FORMING NON-SULFONATED SULFONE POLYMER |
| 摘要 |
Sulfone polymer ultrafiltration membranes with remarkably high permeability to solvent at low pressure combined with excellent retention of low molecular weight macro-molecules and sharp molecular weight cutoff are prepared by casting a sheet of said polymer dissolved in a specified solvent (hexamethylphosphoramide) evaporating a portion of the solvent from the sheet and immersing said sheet in a gelation liquid therefore. |
| 申请公布号 |
DE3161345(D1) |
申请公布日期 |
1983.12.15 |
| 申请号 |
DE19813161345 |
申请日期 |
1981.02.25 |
| 申请人 |
PENNWALT CORPORATION |
发明人 |
BENZINGER, WILLIAM DONALD;HINDE, GEORGE MORRALEE;TOAL, MARGARET GAVIN |
| 分类号 |
C08G75/00;B01D71/68;C08J3/09;C08J9/28;C08L81/06;(IPC1-7):B01D13/04 |
主分类号 |
C08G75/00 |
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