发明名称 |
HIGH PERFORMANCE MEMBRANE |
摘要 |
The invention relates to a micro-porous membrane comprising a porous membrane carrier made of a first polymeric material (A) and comprising a second polymeric material (B) intimately divided throughout the porous membrane carrier, wherein the porous membrane carrier comprises a plurality of interconnected polymeric fibers, fibrils, filaments and/or lamellae having a thickness of less than 1 µm, the porous membrane carrier has an interconnected open porous structure formed by the plurality of interconnected polymeric fibers, fibrils, filaments and/or lamellae and a porosity of at least 50%; and the polymeric material (B) comprises a thermoplastic polycondensation polymer and is present in an amount of at most 30 wt.%, relative to the total weight of (A) and (B). The invention also relates to a process for preparing such a micro-porous membrane comprising steps wherein (i) a porous membrane carrier made of a first polymeric material (A) is impregnated with a polymer solution comprising a second polymeric material (B) in a solvent system (X), and (ii) the resulting impregnated membrane carrier is quenched in a non-solvent system (Y), thereby precipitating at least part of the second polymeric material (B). |
申请公布号 |
WO2009063067(A3) |
申请公布日期 |
2009.07.30 |
申请号 |
WO2008EP65593 |
申请日期 |
2008.11.14 |
申请人 |
DSM IP ASSETS BV;QIU, JUN;RULKENS, RUDY;KAMP, OP DEN, JOHANNES LEONARDUS MARIA;THIES, JENS CHRISTOPH |
发明人 |
QIU, JUN;RULKENS, RUDY;KAMP, OP DEN, JOHANNES LEONARDUS MARIA;THIES, JENS CHRISTOPH |
分类号 |
B01D67/00;B01D69/12 |
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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