发明名称 |
MEMBRAN. |
摘要 |
A method of producing a tubular membrane in which a blend of an aromatic polyetherketone (PEEK) and an aromatic polyethersulphone (PES), the blend being selected in a defined weight range, is extruded into a tube in which the polymers are present in the tube wall as interpenetrating networks and leaching out with a solvent for PES the PES network so producing a porous PEEK tube characterised in that the PEEK and PES used comply with a defined melt viscosity relationship.
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申请公布号 |
NO904018(D0) |
申请公布日期 |
1990.09.14 |
申请号 |
NO19900004018 |
申请日期 |
1990.09.14 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BIRCH, ROBIN DAVID;ARTUS, KEVIN JAMES |
分类号 |
B01D69/04;B01D67/00;B01D71/52;B01D71/68;(IPC1-7):C08J/;D01F8/04 |
主分类号 |
B01D69/04 |
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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