Interfacially polymerized polyester films
    4.
    发明授权
    Interfacially polymerized polyester films 失效
    界面聚合的聚酯薄膜

    公开(公告)号:US5650479A

    公开(公告)日:1997-07-22

    申请号:US468839

    申请日:1995-06-06

    摘要: The present invention concerns a polyester gas separation membrane which is obtained by the interfacial polymerization of benzenetricarbonyl trihalide or benzene tetracarbonyl tetrahalide in a water-insoluble organic solvent in one phase and a variety of polyfunctional phenols present as the di- or tri-salt in a mixture of water and phase transfer agent and a water-soluble organic solvent in the second phase. The present invention also includes the polyester membrane itself, its methods of preparation and the use of the membranes to separate gas mixtures, such as carbon dioxide and methane, helium and methane and the like.

    摘要翻译: 本发明涉及一种聚酯气体分离膜,其通过在一相中的水不溶性有机溶剂中的三卤代三卤甲烷或四羰基四羰基苯的界面聚合获得,并且在一个相中存在多种作为二盐或三盐的多官能酚 水和相转移剂的混合物和第二相中的水溶性有机溶剂。 本发明还包括聚酯膜本身,其制备方法和膜的使用以分离气体混合物,例如二氧化碳和甲烷,氦和甲烷等。