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    Composite semipermeable membrane and method for producing same
    3.
    发明专利
    Composite semipermeable membrane and method for producing same 未知

    公开(公告)号：AU2010336727A1

    公开(公告)日：2012-05-31

    申请号：AU2010336727

    申请日：2010-12-16

    Applicant: TORAY INDUSTRIES

    Inventor： SASAKI TAKAO ,  MITSUHATA TOMOKO ,  TAKAGI KENTARO ,  OTO KATSUFUMI

    IPC: B01D71/56 ,  B01D69/12 ,  B01D71/82 ,  C08J7/12

    Abstract: Disclosed is a composite semipermeable membrane which is obtained by forming a polyamide separation functional layer on a microporous supporting membrane, said polyamide separation functional layer being obtained by a polycondensation reaction between a polyfunctional aromatic amine and a polyfunctional acid halide. The polyamide separation functional layer has a carboxy group, an amino group, a phenolic hydroxyl group and an azo group. The ratio of the amino group (X) in the raw water contact surface (surface A) of the polyamide separation functional layer (namely, the molar equivalent of the amino group/(the molar equivalent of the azo group + the molar equivalent of the phenolic hydroxyl group + the molar equivalent of the amino group)) is not more than 0.5, and the ratio of the amino group (X) in the permeation-side surface (surface B) of the polyamide separation functional layer, said permeation-side surface being on the reverse side of the surface A, (namely, the molar equivalent of the amino group/(the molar equivalent of the azo group + the molar equivalent of the phenolic hydroxyl group + the molar equivalent of the amino group)) is within the range of 0.5-1 (inclusive). The composite semipermeable membrane has a good balance between high solute removing properties and high water permeation rate, while having high organic solvent resistance. Also disclosed is a method for producing the composite semipermeable membrane.

    Separation membrane element
    4.
    发明专利
    Separation membrane element 未知

    公开(公告)号：AU2011259905B2

    公开(公告)日：2015-05-28

    申请号：AU2011259905

    申请日：2011-06-02

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA MASAHIRO ,  OTO KATSUFUMI ,  TAKAGI KENTAROU ,  HIROZAWA HIROHO ,  KOIWA MASAKAZU ,  SUZUKI YUTARO

    IPC: B01D69/12 ,  B01D63/00

    Abstract: Provided is a separation membrane element, wherein it is possible to increase the amount of fluid permeating per unit time and to improve stability performance. Specifically provided is a separation membrane element configured from a separation function layer on the surface, a separation membrane having a non-woven fabric functioning as a base material on the rear surface of the separation membrane, and a permeation-side passage material disposed on the rear surface side of said base material, wherein the permeation-side passage material is formed from a different material from the separation membrane, and the ratio of the projection area of the permeation-side passage material relative to the separation membrane is 0.03 to 0.80.

    Separation membrane element
    5.
    发明专利
    Separation membrane element 未知

    公开(公告)号：AU2011259905A1

    公开(公告)日：2013-01-10

    申请号：AU2011259905

    申请日：2011-06-02

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA MASAHIRO ,  OTO KATSUFUMI ,  TAKAGI KENTAROU ,  HIROZAWA HIROHO ,  KOIWA MASAKAZU ,  SUZUKI YUTARO

    IPC: B01D69/12 ,  B01D63/00

    Abstract: Provided is a separation membrane element, wherein it is possible to increase the amount of fluid permeating per unit time and to improve stability performance. Specifically provided is a separation membrane element configured from a separation function layer on the surface, a separation membrane having a non-woven fabric functioning as a base material on the rear surface of the separation membrane, and a permeation-side passage material disposed on the rear surface side of said base material, wherein the permeation-side passage material is formed from a different material from the separation membrane, and the ratio of the projection area of the permeation-side passage material relative to the separation membrane is 0.03 to 0.80.

    SEPARATION MEMBRANE ELEMENT
    7.
    发明专利
    SEPARATION MEMBRANE ELEMENT 未知

    公开(公告)号：SG185557A1

    公开(公告)日：2012-12-28

    申请号：SG2012083614

    申请日：2011-06-02

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA MASAHIRO ,  OTO KATSUFUMI ,  TAKAGI KENTAROU ,  HIROZAWA HIROHO ,  KOIWA MASAKAZU ,  SUZUKI YUTARO

    Abstract: To provide a separation membrane element that is able to increase the amount of permeate fluid per unit time and also able to improve stability performance, provided is a separation membrane element, comprising a separation membrane and 5 a permeate spacer, wherein a separation fimetional layer is arranged on the surface of said separation membrane and a nonwoven fabric served as a substrate is arranged on the back surface of said separation membrane, wherein said permeate spacer is arranged on the back surface side of said substrate, wherein said permeate spacer is made of a different material from said separation membrane, and a projection area 10 ratio of said permeate spacer to said separation membrane is 0.03 to 0.80.

    COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD FOR PRODUCING SAME
    10.
    发明专利
    COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD FOR PRODUCING SAME 未知

    公开(公告)号：SG181590A1

    公开(公告)日：2012-07-30

    申请号：SG2012042339

    申请日：2010-12-16

    Applicant: TORAY INDUSTRIES

    Inventor： SASAKI TAKAO ,  MITSUHATA TOMOKO ,  TAKAGI KENTARO ,  OTO KATSUFUMI

    Abstract: A composite semipermeable membrane comprising a porous support membrane on which a separating functional polyamide layer resulting from the polycondensation 5 reaction of polyfunctional aromatic amines with polyfunctional acid halides is formed, wherein the separating functional polyamide layer has carboxy groups, amino groups, phenolic hydroxyl groups, and azo groups, wherein XA, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the 10 amino groups)) on a feed water contact surface of the separating functional polyamide layer (an A surface), is in the range 0.5 or less, and XB, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a permeate-side surface of the separating functional polyamide 15 layer (a B surface), i.e., the opposite side to the A surface, is in the range of 0.5 to 1. The present invention provides a composite semipermeable membrane that achieves a balance between high solute removal properties and a high permeate flow rate and has high organic-solvent resistance, and a method for producing same. 2 2. 2d 2b

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