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    • 8. 发明公开
    • HIGH PERFORMANCE MEMBRANE
    • 聚乙烯薄膜麻醉多糖BESCHICHTUNG
    • EP2217357A2
    • 2010-08-18
    • EP08850102.8
    • 2008-11-14
    • DSM IP Assets B.V.
    • QIU, JunRULKENS, RudyKAMP, OP DEN, Johannes Leonardus MariaTHIES, Jens Christoph
    • B01D67/00B01D69/12
    • 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).
    • 本发明涉及一种改性多孔膜的方法,包括以下步骤:(a)具有开孔结构的多孔膜载体(A)用包含聚合物(B-1)在溶剂中的溶液(X)浸渍 (X-1),其中聚合物(B-1)可溶,从而形成浸渍有聚合物溶液(X)的多孔膜载体,并且由浸渍溶液组成的聚合物(B-1)的至少一部分是 通过用包含用于所述聚合物的非溶剂(Y-1)的液体(Y)进行淬火从溶液中沉淀出来。 本发明还涉及包含多孔膜载体(A)和聚合物材料(B)的微孔膜,所述聚合物材料(B)包含在整个多孔膜载体上密切分布的缩聚聚合物,其中聚合物材料包含缩聚聚合物,以及 制备所述膜的方法及其用途。