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    Hollow porous membrane and process for producing the same
    5.
    发明授权
    Hollow porous membrane and process for producing the same 有权
    中空多孔膜及其制造方法

    公开(公告)号：US08752713B2

    公开(公告)日：2014-06-17

    申请号：US12993709

    申请日：2009-05-21

    申请人： Masashi Teramachi ,  Kei Murase ,  Toshinori Sumi ,  Yasuo Hiromoto ,  Hiroyuki Fujiki ,  Masaki Kurashina ,  Masakazu Minagawa

    发明人： Masashi Teramachi ,  Kei Murase ,  Toshinori Sumi ,  Yasuo Hiromoto ,  Hiroyuki Fujiki ,  Masaki Kurashina ,  Masakazu Minagawa

    IPC分类号： B01D29/46 ,  B01D39/14 ,  B32B15/00 ,  B29C47/00

    CPC分类号： B01D69/08 ,  B01D61/14 ,  B01D69/02 ,  B01D69/087 ,  B01D2325/02 ,  B01D2325/04 ,  B01D2325/40

    摘要： A hollow porous membrane with a reduced cost and excellent separation characteristic, water permeability, and mechanical strength and a process of producing the hollow porous membrane with an excellent adhesive property between a support and a porous membrane layer at a low cost are provided. The hollow porous membrane includes a porous membrane layer in which dense layers are disposed in the vicinities of an outer surface and an inner surface. In the process of producing the hollow porous membrane, membrane-forming dopes of a first membrane-forming dope and a second membrane-forming dope, which contain the material of the porous membrane layer and a solvent, are successively applied and stacked onto the outer circumferential surface of a hollow support and the applied membrane-forming dopes are simultaneously coagulated. In the process of producing the hollow porous membrane, a porous membrane layer is formed by applying a membrane-forming dope containing a material of the porous membrane layer and a solvent to the outer circumferential surface of the hollow support and coagulating the applied dope, and a hollow braid obtained by circularly knitting a yarn formed of multi-filaments is used as the support.

    摘要翻译： 提供了一种中空多孔膜，其成本降​​低且分离特性优异，透水性和机械强度，以及以低成本制备支撑体和多孔膜层之间的粘合性优异的中空多孔膜的方法。 中空多孔膜包括多孔膜层，其中致密层设置在外表面和内表面附近。 在制造中空多孔膜的过程中，连续地施加包含多孔膜层和溶剂的材料的第一成膜用原液和第二成膜原液的成膜剂，并层叠在外层 中空支撑体的圆周表面和所施加的成膜涂料同时凝结。 在制造中空多孔膜的过程中，通过将含有多孔膜层和溶剂的成膜原液涂布到中空支撑体的外周面并使涂布液凝结而形成多孔膜层， 使用通过圆形编织由多丝线形成的纱线获得的空心编织物作为支撑体。

    HOLLOW POROUS MEMBRANE AND PROCESS FOR PRODUCING THE SAME
    6.
    发明申请
    HOLLOW POROUS MEMBRANE AND PROCESS FOR PRODUCING THE SAME 有权
    多孔多孔膜及其制造方法

    公开(公告)号：US20110114553A1

    公开(公告)日：2011-05-19

    申请号：US12993709

    申请日：2009-05-21

    申请人： Masashi Teramachi ,  Kei Murase ,  Toshinori Sumi ,  Yasuo Hiromoto ,  Hiroyuki Fujiki ,  Masaki Kurashina ,  Masakazu Minagawa

    发明人： Masashi Teramachi ,  Kei Murase ,  Toshinori Sumi ,  Yasuo Hiromoto ,  Hiroyuki Fujiki ,  Masaki Kurashina ,  Masakazu Minagawa

    IPC分类号： B01D69/08 ,  D04B1/22 ,  B01D69/10 ,  B05D5/00

    CPC分类号： B01D69/08 ,  B01D61/14 ,  B01D69/02 ,  B01D69/087 ,  B01D2325/02 ,  B01D2325/04 ,  B01D2325/40

    摘要： A hollow porous membrane with a reduced cost and excellent separation characteristic, water permeability, and mechanical strength and a process of producing the hollow porous membrane with an excellent adhesive property between a support and a porous membrane layer at a low cost are provided. The hollow porous membrane includes a porous membrane layer in which dense layers are disposed in the vicinities of an outer surface and an inner surface. In the process of producing the hollow porous membrane, membrane-forming dopes of a first membrane-forming dope and a second membrane-forming dope, which contain the material of the porous membrane layer and a solvent, are successively applied and stacked onto the outer circumferential surface of a hollow support and the applied membrane-forming dopes are simultaneously coagulated. In the process of producing the hollow porous membrane, a porous membrane layer is formed by applying a membrane-forming dope containing a material of the porous membrane layer and a solvent to the outer circumferential surface of the hollow support and coagulating the applied dope, and a hollow braid obtained by circularly knitting a yarn formed of multi-filaments is used as the support.

    摘要翻译： 提供了一种中空多孔膜，其成本降​​低且分离特性优异，透水性和机械强度，以及以低成本制备支撑体和多孔膜层之间的粘合性优异的中空多孔膜的方法。 中空多孔膜包括多孔膜层，其中致密层设置在外表面和内表面附近。 在制造中空多孔膜的过程中，连续地施加包含多孔膜层和溶剂的材料的第一成膜用原液和第二成膜原液的成膜剂，并层叠在外层 中空支撑体的圆周表面和所施加的成膜涂料同时凝结。 在制造中空多孔膜的过程中，通过将含有多孔膜层和溶剂的成膜原液涂敷到中空支撑体的外周面并凝结涂布液而形成多孔膜层， 使用通过圆形编织由多丝线形成的纱线获得的空心编织物作为支撑体。