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    • 2. 发明申请
    • HIGH PERFORMANCE MEMBRANE
    • 高性能膜
    • US20100305217A1
    • 2010-12-02
    • US12743089
    • 2008-11-14
    • Jun QiuRudy RulkensJohannes Leornardus Maria OP Den KampJens Christoph Thies
    • Jun QiuRudy RulkensJohannes Leornardus Maria OP Den KampJens Christoph Thies
    • B01D69/12B01D67/00B01D65/00B01D71/06C12N11/08A61K47/30
    • B01D67/0088B01D69/02B01D71/26B01D71/56B01D2323/02B01D2325/22B01D2325/24H01M2/145H01M2/1653
    • 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).
    • 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)。