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    • 8. 发明申请
    • SEPARATION MEMBRANE AND METHOD FOR PRODUCING SAME
    • 分离膜及其制造方法
    • US20130020251A1
    • 2013-01-24
    • US13636316
    • 2011-03-17
    • Tatsuya IchikawaSadajiro Hatano
    • Tatsuya IchikawaSadajiro Hatano
    • B01D71/68B01D67/00B01D71/34B01D71/56B01D69/10B01D71/16
    • D06M15/256B01D69/02B01D69/06B01D69/12B01D2323/42B01D2325/04B01D2325/24D06M15/07D06M15/59D06M15/63
    • Disclosed is a separation membrane comprising—an elongated substrate having fluid permeability and a separation layer formed at the surface of said substrate—wherein the aforementioned separation layer comprises a predetermined thickness section having a predetermined thickness and thin sections each positioned on the outside of both edges in the widthwise direction of said predetermined thickness portion and having a thinner thickness than the aforementioned predetermined thickness, and there is a separation-layer-lacking section, at which only the aforementioned substrate is present and the aforementioned separation layer is absent, between the outside edges in the widthwise direction of each of said thin sections and the outer edges in the widthwise direction of the aforementioned substrate. The separation membrane can be produced by using coating bar having a protrusion on both the left and right ends of the surface that contacts a macromolecule solution for forming the separation layer.
    • 公开了一种分离膜,其包括具有流体渗透性的细长基材和形成在所述基材表面的分离层,其中上述分离层包含具有预定厚度的预定厚度部分和分别位于两个边缘的外侧的薄部分 在所述预定厚度部分的宽度方向上具有比上述预定厚度更薄的厚度,并且在外部存在仅存在上述基板并且不存在上述分离层的分离层缺乏部分 所述薄壁部分的宽度方向上的边缘和上述基板的宽度方向上的外缘。 分离膜可以通过在表面的左右两端具有与用于形成分离层的高分子溶液接触的突起的涂布条来制造。