Polyether-polycarbonates for dialysis membranes
    2.
    发明授权
    Polyether-polycarbonates for dialysis membranes 失效
    用于透析膜的聚醚 - 聚碳酸酯

    公开(公告)号:US4563516A

    公开(公告)日:1986-01-07

    申请号:US640914

    申请日:1984-08-15

    摘要: The present invention relates to a process for the preparation of polyether-polycarbonates, a process for stabilizing the polyether-polycarbonates thus prepared, a process for the production of membranes from the polyether-polycarbonates prepared according to the invention, stabilized membranes obtainable by the process according to the invention and the use of the polyether-polycarbonate membranes obtainable by the process according to the invention for dialysis, ultrafiltration and reverse osmosis.

    摘要翻译: 本发明涉及一种制备聚醚 - 聚碳酸酯的方法,一种稳定所制备的聚醚 - 聚碳酸酯的方法,由根据本发明制备的聚醚 - 聚碳酸酯生产膜的方法,可通过该方法获得的稳定的膜 根据本发明以及通过根据本发明的方法可获得的聚醚 - 聚碳酸酯膜用于透析,超滤和反渗透。

    Polyether-copolycarbonates for dialysis membranes
    3.
    发明授权
    Polyether-copolycarbonates for dialysis membranes 失效
    用于透析膜的聚醚 - 共聚碳酸酯

    公开(公告)号:US4735721A

    公开(公告)日:1988-04-05

    申请号:US840179

    申请日:1986-03-17

    摘要: The present invention is directed to a process for the preparation of a segmented, aliphatic-aromatic polyether-copolycarbonate containing structural units conforming to ##STR1## wherein --D-- is a diphenolate radical and units conforming to ##STR2## wherein --O--Polyether--O-- is an aliphatic polyether-diolate radical, by the phase boundary process in which aliphatic polyether diol and a mixture of dihydroxy compounds are reacted with a carbonic acid halide which is employed in molar excess in relation to the dihydroxy compounds and in which the aqueous phase is kept at a pH value of at least 13 and where the polycondensation reaction is carried out in a reactor by addition of an amine catalyst.The invention is further directed to the polyether polycarbonate which is obtained by the process and to the preparation of membranes from said polyether copolycarbonate.

    摘要翻译: 本发明涉及一种制备分段的脂族 - 芳族聚醚 - 共聚碳酸酯的方法,其包含符合的结构单元,其中-D-是二酚盐基团和符合的单元,其中-O-聚醚 - O-是脂族聚醚 - 二醇酯基,通过相位过程,其中脂族聚醚二醇和二羟基化合物的混合物与相对于二羟基化合物摩尔过量使用的碳酸卤化物反应,其中水性 相位保持在至少13的pH值,并且其中缩聚反应在反应器中通过加入胺催化剂进行。 本发明还涉及通过该方法获得的聚醚聚碳酸酯和从所述聚醚共聚碳酸酯制备膜。