公开(公告)号：US20100305217A1

公开(公告)日：2010-12-02

申请号：US12743089

申请日：2008-11-14

申请人： Jun Qiu ,  Rudy Rulkens ,  Johannes Leornardus Maria OP Den Kamp ,  Jens Christoph Thies

发明人： Jun Qiu ,  Rudy Rulkens ,  Johannes Leornardus Maria OP Den Kamp ,  Jens Christoph Thies

IPC分类号： B01D69/12 ,  B01D67/00 ,  B01D65/00 ,  B01D71/06 ,  C12N11/08 ,  A61K47/30

CPC分类号： B01D67/0088 ,  B01D69/02 ,  B01D71/26 ,  B01D71/56 ,  B01D2323/02 ,  B01D2325/22 ,  B01D2325/24 ,  H01M2/145 ,  H01M2/1653

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).

摘要翻译： 本发明涉及一种微孔膜，其包括由第一聚合物材料（A）制成的多孔膜载体，并且包括在整个多孔膜载体上密切分配的第二聚合材料（B），其中多孔膜载体包括多个互连的 聚合物纤维，原纤维，细丝和/或薄片，厚度小于1μm，多孔膜载体具有由多个互连的聚合物纤维，原纤维，长丝和/或薄片形成的互连的开放多孔结构， 至少50％; 聚合物材料（B）包含热塑性缩聚聚合物，其含量至多为30wt。 ％，相对于（A）和（B）的总重量。 本发明还涉及一种制备这种微孔膜的方法，其包括以下步骤：（i）由第一聚合物材料（A）制成的多孔膜载体用包含第二聚合物材料（B）的聚合物溶液浸渍 溶剂体系（X），和（ii）所得浸渍的膜载体在非溶剂系统（Y）中骤冷，从而沉淀至少部分第二聚合物材料（B）。