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    Hydrophilic sulfonated polyolefin porous membrane and process for preparing the same
    51.
    发明授权
    Hydrophilic sulfonated polyolefin porous membrane and process for preparing the same 失效
    亲水磺化聚烯烃多孔膜及其制备方法

    公开(公告)号：US4409339A

    公开(公告)日：1983-10-11

    申请号：US194341

    申请日：1980-10-06

    申请人： Kazuo Matsuda ,  Mitsuo Kohno ,  Yoshinao Doi

    发明人： Kazuo Matsuda ,  Mitsuo Kohno ,  Yoshinao Doi

    IPC分类号： C08J9/26 ,  B01D67/00 ,  B01D71/26 ,  C08J9/34 ,  C08F110/00 ,  B01J47/12 ,  C08F8/36

    CPC分类号： B01D67/0093 ,  B01D67/003 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26

    摘要： A sulfonated polyolefin porous membrane containing sulfonic groups in an amount, in terms of exchange capacity, of 0.05 to 1 milliequivalent per gram of the sulfonated polyolefin and having a porosity of 30 to 85% and an average pore diameter of 0.05 to 1.mu. has been found to be excellent in water permeability, removal capability, water-permeability retention, mechanical strength and elongation, etc. The porous membrane of the present invention may advantageously be employed as a fine microfilter or the like. The porous membrane of the present invention may be easily prepared by treating with a sulfonating agent a polyolefin porous membrane preferably containing an inorganic filler which is subsequently extracted from the membrane.

    摘要翻译： 已经有一个磺化聚烯烃多孔膜，其中磺酸基的交换能力为每克磺化聚烯烃0.05至1毫当量，孔隙率为30至85％，平均孔径为0.05至1微米 发现透水性，去除能力，透水性保持性，机械强度和伸长率等都是优异的。本发明的多孔膜可以有利地用作微细过滤器等。 本发明的多孔膜可以通过用磺化剂处理优选含有随后从膜中提取的无机填料的聚烯烃多孔膜来容易地制备。