发明名称 |
POLYACRYLONITRILE-BASE HOLLOW-FIBER FILTRATION MEMBRANE |
摘要 |
A polyacrylonitrile-based hollow fiber filtration membrane, wherein said membrane comprises a sponge structure free from polymer defect sites of sizes larger than 10 mu m inside the membrane, pore sizes of the membrane continuously decrease towards both surfaces of the membrane, and the pore size on the outer surface of the membrane is different from that on the inner surface. <IMAGE> |
申请公布号 |
EP0923984(A4) |
申请公布日期 |
2004.12.08 |
申请号 |
EP19980928581 |
申请日期 |
1998.06.19 |
申请人 |
ASAHI KASEI KABUSHIKI KAISHA |
发明人 |
OISHI, TERUHIKO;KUBOTA, NOBORU |
分类号 |
B01D67/00;B01D69/02;B01D69/08;B01D71/42;D01D5/24;D01F6/18 |
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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