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isotropic microporous membranes or general from syndiotaktischem polystyrene and production processes.

机译:各向同性的微孔膜或由Syndiotaktischem聚苯乙烯生产的一般膜。

摘要

Semi-permeable isotropic or anisotropic syndiotactic polystyrene microporous membranes are prepared as follows: A. forming a mixture, comprising (i) syndiotactic polystyrene, and (ii) at least one solvent for the syndiotactic polystyrene; B. heating the mixture to a temperature such that a homogeneous fluid is formed having sufficient viscosity for forming into a membrane; C. extruding or casting the homogeneous fluid into a membrane; D. quenching or coagulating the membrane by passing the membrane through one or more zones such that the membrane solidifies; and E. simultaneously or consecutively leaching the membrane by passing the membrane through one or more zones such that at least a substantial portion of the solvent for the syndiotactic polystyrene is removed from the membrane. a
机译:半透性各向同性或各向异性的间同立构聚苯乙烯微孔膜的制备如下:A.形成混合物,其包含(i)间同立构聚苯乙烯和(ii)至少一种间同立构聚苯乙烯的溶剂; B.将混合物加热到一定温度,以形成具有足够粘度的均质流体以形成膜; C.将均质流体挤出或浇铸成膜; D.通过使膜穿过一个或多个区域使膜固化而使膜淬灭或凝结; E.通过使膜穿过一个或多个区域同时或连续地沥滤膜,使得间同立构聚苯乙烯的溶剂的至少大部分从膜上除去。一种

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