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    COMPOSITE HOLLOW-FIBER MEMBRANE AND PRODUCTION METHOD THEREFOR
    1.
    发明申请
    COMPOSITE HOLLOW-FIBER MEMBRANE AND PRODUCTION METHOD THEREFOR 审中-公开

    公开(公告)号：US20200061545A1

    公开(公告)日：2020-02-27

    申请号：US16489276

    申请日：2018-02-27

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Koichi TAKADA ,  Gohei YAMAMURA ,  Hiroki EIMURA

    IPC: B01D69/08 ,  B01D69/12 ,  B01D71/16 ,  B01D71/56

    Abstract: The present invention addresses the problem of providing: a composite hollow-fiber membrane having high permeability and high membrane strength; and a production method therefor. The present invention pertains to a composite hollow-fiber membrane that at least has a layer (A) and a layer (B), wherein the layer (A) contains a thermoplastic resin, the layer (A) is provided with a co-continuous structure comprising voids and a phase containing the thermoplastic resin, the co-continuous structure has a structural cycle of 1-1000 nm, and the hole area rate HA of the layer (A) and the hole area rate HB of the layer (B) fulfill the relation: HA

    SEPARATION MEMBRANE
    4.
    发明申请
    SEPARATION MEMBRANE 审中-公开

    公开(公告)号：US20190046931A1

    公开(公告)日：2019-02-14

    申请号：US16073531

    申请日：2017-01-27

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Gohei YAMAMURA ,  Koichi TAKADA ,  Hiroki TOMIOKA

    IPC: B01D69/08 ,  B01D69/10 ,  B01D69/12 ,  B01D71/12

    Abstract: The problem addressed by the present invention is to provide a separation membrane with superior permeation performance and separation performance and having few occurrences of defects. The present invention relates to a separation membrane wherein: the separation membrane has a layer (I) with a thickness of 0.5-100 μm; letting, in a cross-section in the direction of thickness of the layer (I), region a be a region with a depth of 50-150 nm from a surface (surface A), region b a region with a depth of 50-150 nm from the other surface (surface B), and region c a region with a thickness of 100 nm where the depth from both surfaces is the same, the average pore diameter Pa for region a and the average pore diameter Pb for region b are both 0.3-3.0 nm and the average pore diameter Pc for region c is 3.0 nm or less; and the percentage of open area Ha for region a, the percentage of open area Hb for region b, and the percentage of open area Hc for region c satisfy the following equations. 2Hc

    FILTER AND FLUID SEPARATION METHOD
    7.
    发明申请
    FILTER AND FLUID SEPARATION METHOD 审中-公开

    公开(公告)号：US20200261886A1

    公开(公告)日：2020-08-20

    申请号：US16651507

    申请日：2018-08-31

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Ryoma MIYAMOTO ,  Gohei YAMAMURA ,  Yoichiro KOZAKI ,  Ryuichiro HIRANABE ,  Satoko KANAMORI

    IPC: B01J20/28 ,  B01J20/02

    Abstract: Provided is a filter having either or both of a winding and a laminate that include a fiber-like absorbing material, wherein the fiber-like absorbing material has a base material and metal particles supported on the base material, and the diameter D of the fiber-like absorbing material, the void fraction of the winding or laminate, and the variation in the area void fraction in the radial direction of the winding or the variation in the area void fraction in the direction of lamination are in a specific range.

    SEPARATION FILM AND PRODUCTION METHOD THEREFOR
    9.
    发明申请
    SEPARATION FILM AND PRODUCTION METHOD THEREFOR 审中-公开

    公开(公告)号：US20200023321A1

    公开(公告)日：2020-01-23

    申请号：US16498802

    申请日：2018-03-30

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Hiroki EIMURA ,  Gohei YAMAMURA ,  Koichi TAKADA

    IPC: B01D71/18 ,  B01D67/00 ,  B01D69/02

    Abstract: The purpose of the present invention is to provide: a separation film that consists primarily of a cellulose ester and has a high membrane strength and a high elongation degree; and a production method therefor. Provided is a separation film which has a structure comprising a cellulose ester phase and pores, wherein the average pore diameter R is 0.001-6 μm, the value obtained from the expression: breaking strength (MPa)÷(100−porosity (%))×100 is 40 or greater, and the elongation degree is 10% or greater.

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