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22. 发明授权

US4360434A Amphoteric ion-permeable composite membrane 失效
标题翻译：两性离子渗透复合膜
公开(公告)号：US4360434A
公开(公告)日：1982-11-23
申请号：US225324
申请日：1981-01-15
申请人： Takeyuki Kawaguchi , Hiroyoshi Minematsu , Yuzuru Hayashi , Shigeyoshi Hara , Fumio Ueda
发明人： Takeyuki Kawaguchi , Hiroyoshi Minematsu , Yuzuru Hayashi , Shigeyoshi Hara , Fumio Ueda
IPC分类号： B01D67/00 , B01D69/12 , B01D71/60 , C08J5/22 , G01N27/40 , B05D3/10 , B05D5/00
CPC分类号： B01D67/0093 , B01D69/125 , B01D71/60 , G01N27/40 , B01D2323/30 , Y10T428/249978 , Y10T428/249981
摘要： An amphoteric ion-permeable composite membrane composed of a microporous substrate, and supported on the substrate, a thin amphoteric ion-exchange film formed of an active amino group-containing polymer which has been interfacially crosslinked at least at the surface portion of the thin film, said membrane being produced by forming a thin layer comprising an active amino group-containing polymer containing 1.0 to 23 milliequivalents/g, as amino equivalent, of an active amino group selected from primary and secondary amino groups and 0 to 18 milliequivalents/g, as amino equivalent, of a tertiary amino group and/or an ammonium salt group per molecule with the total amino content thereof being in the range of 2.0 to 23 milliequivalents/g on the microporous substrate and then contacting the thin layer on the substrate interfacially with a polyfunctional aromatic compound containing at least two functional groups selected from carbonyl halide groups, sulfonyl halide groups, carboxylic acid anhydride groups, sulfonic acid anhydride groups and derivative groups of carboxylic acids and sulfonic acids having equivalent reactivity to the aforesaid halide and anhydride groups.
摘要翻译：由微孔基材构成并负载在基板上的两性离子透过性复合膜由至少在薄膜的表面部分进行了界面交联的含活性氨基聚合物形成的薄的两性离子交换膜所述膜通过形成包含含有选自伯氨基和仲氨基的活性氨基和0至18毫当量/克的作为氨基当量的1.0至23毫当量/克的含有活性氨基的聚合物的薄层，作为氨基当量的每个分子的叔氨基和/或铵盐基团，其总氨基含量在微孔基材上在2.0至23毫当量/ g的范围内，然后使基底上的薄层与含有至少两个选自羰基卤基，磺酰卤基，羧酸的官能团的多官能芳族化合物酸酐基团，磺酸酐基团和与上述卤化物和酸酐基团具有等同反应性的羧酸和磺酸的衍生基团。

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