发明名称 |
COMPOSITE SEPARATION MEMBRANES AND THE PREPARATION AND USE THEREOF |
摘要 |
IMPROVED COMPOSITE SEPARATION MEMBRANES AND THE PREPARATION AND USE THEREOF of the Disclosura Composite membranes are post-treated with a volatile solvent system, with or without minute amounts of additives therein, to repair defects in the thin separation layer thereof. The membrane is then dried by the evaporation of said solvent. Minute amounts of non-volatile additives remain in and plug imperfections in the separation layer thereby enhancing the separation, and the overall separation/permeability, characteristics of the composite membrane. |
申请公布号 |
CA1299449(C) |
申请公布日期 |
1992.04.28 |
申请号 |
CA19880563477 |
申请日期 |
1988.04.07 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
BIKSON, BENJAMIN;GIGLIA, SALVATORE;KHARAS, GREGORY |
分类号 |
B01D53/22;B01D61/36;B01D65/10;B01D67/00;B01D69/12;C01B3/50;C01B13/02;C07B63/00;C07C27/00;C07C29/76;C07C67/00 |
主分类号 |
B01D53/22 |
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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