发明名称 |
Method of producing hollow fiber polymer membranes |
摘要 |
In a method of producing hollow fiber membranes, wherein a molten polymer charged with a gas under pressure is provided in an extrusion apparatus, the polymer melt including the gas under pressure is extruded from the extrusion apparatus through a hollow fiber-forming extrusion nozzle with a predetermined pressure drop which provides for a concurrent expansion of the gas contained in the polymer melt thereby forming a porous hollow fiber membrane.
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申请公布号 |
US5980795(A) |
申请公布日期 |
1999.11.09 |
申请号 |
US19970969370 |
申请日期 |
1997.11.28 |
申请人 |
GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH |
发明人 |
KLOETZER, REBECCA;SEIBIG, BERND;PAUL, DIETER;PEINEMANN, KLAUS-VIKTOR |
分类号 |
B01D67/00;B01D69/08;B29C44/50;D01D5/24;D01D5/247;(IPC1-7):D01D5/247 |
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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