发明名称 |
HOLLOW FIBER MEMBRANE INCORPORATING A SURFACTANT AND PROCESS FOR PREPARING SAME |
摘要 |
Improved asymmetrical microporous hollow fibers incorporating a low molecular weight surfactant and the process for the production of the hollow fibers are disclosed. The hollow fibers have significantly improved flux and rewetting characteristics. The process involves passing a polymeric solution through an outer annulus of die to create an annular stream and a precipitating fluid through the inner orifice of the die creating a stream within the annular stream resulting in hollow fiber formation. The process further involves incorporating a low molecular weight surfactant into the hollow fibers at any one of several stages during the process.
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申请公布号 |
CA2136006(C) |
申请公布日期 |
1999.11.30 |
申请号 |
CA19932136006 |
申请日期 |
1993.04.05 |
申请人 |
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发明人 |
COSENTINO, LOUIS C.;HALL, ROBERT T., II;ANDRUS, ROBERT G.;BRINDA, PAUL D.;WENTHOLD, RANDAL M. |
分类号 |
B01D67/00;B01D69/08;B01D71/62;B01D71/64;B01D71/68;D01D5/24;D06M13/02;D06M13/144;D06M13/224;D06M13/244;D06M13/248;D06M13/262;D06M13/325;D06M101/00;D06M101/16;D06M101/30;(IPC1-7):B01D71/68 |
主分类号 |
B01D67/00 |
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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