| 发明名称 |
THERMOPLASTIC MEMBRANES WITH UNIFORM POROSITY; PRODUCTION BY EXTRUSION OF BLEND OF THERMOPLASTIC POLYMERS |
| 摘要 |
A porous thermoplastic membrane structure having, in the absence of an external skin, a generally uniform porosity, such membrane structure being capable of withstanding a minimum burst pressure in excess of 5 bars. <IMAGE>
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| 申请公布号 |
NZ241685(A) |
申请公布日期 |
1993.07.27 |
| 申请号 |
NZ19920241685 |
申请日期 |
1992.02.21 |
| 申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
BIRCH, ROBIN DAVID |
| 分类号 |
B01D39/16;B01D67/00;B01D69/02;B01D69/08;B01D71/52;B29C47/00;B29C47/20;B29C47/30;B29C47/36;B29D23/00;B29L24/00;C08J9/26;(IPC1-7):C08J9/00;B01D69/04;B29C67/20 |
主分类号 |
B01D39/16 |
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代理人 |
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