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    2.
    发明专利
    未知

    公开(公告)号：DE68928832D1

    公开(公告)日：1998-11-19

    申请号：DE68928832

    申请日：1989-07-27

    Applicant: ASAHI GLASS CO LTD

    Inventor： SUGAYA YOSHIO ,  TERADA ICHIRO ,  SANEKATA KIYONARI ,  HORIE HIROFUMI

    IPC: C08G75/23 ,  C08G75/00 ,  C08J5/22 ,  B01J41/12

    Abstract: An anion exchanger consisting essentially of an aromatic polysulfone block copolymer of the formula: wherein Ar is Y is -SO2-, -S- or -O-, Z is a single bond, -O-, -S-, -SO2-, each of R1 to R9 which may be the same or different is a hydrocarbon group having from 1 to 8 carbon atoms, each of a to d is an integer of from 0 to 4, e is an integer of from 0 to 3, (f + g) is from 0 to 7, (h + i) is from 0 to 5, each of R10 and R11 is a hydrogen atom or a hydrocarbon group having from 1 to 6 carbon atoms, and each of m and n is an integer of from 2 to 200, provided m/n = 100/1 - 1/10, and having anion exchange groups introduced to the aromatic rings of the copolymer.

    3.
    发明专利
    未知

    公开(公告)号：DE69303836T2

    公开(公告)日：1997-01-02

    申请号：DE69303836

    申请日：1993-02-18

    Applicant: ASAHI GLASS CO LTD

    Inventor： SUGAYA YOSHIO ,  TADA MISAKI ,  MIYAKE HARUHISA

    IPC: B01D61/44 ,  B01D61/46 ,  C08J5/22 ,  B01D61/48 ,  B01D71/80 ,  B01D67/00 ,  B01D69/02

    Abstract: A method for hydrogen ion-selective electrodialysis, wherein from an aqueous solution containing hydrogen ions on an anode side, the hydrogen ions are selectively permitted to permeate through a membrane to a cathode side, wherein the membrane is a double layer ion exchange membrane comprising an anion exchanger layer on the anode side and a cation exchanger layer on the cathode side, and the anion exchanger layer has an ion exchange capacity of from 0.5 to 4 meq/g dry resin, a fixed ion concentration of from 1 to 10 meq/g H2O, a thickness of from 0.1 to 150 mu m and an electrical resistance of at most 1 OMEGA .cm as measured in a 0.5 mol/ l sulfuric acid solution.

    HETEROGENEOUS ANION EXCHANGER
    5.
    发明专利
    HETEROGENEOUS ANION EXCHANGER 未知

    公开(公告)号：CA2353617A1

    公开(公告)日：2002-01-24

    申请号：CA2353617

    申请日：2001-07-23

    Applicant: ASAHI GLASS CO LTD

    Inventor： SUGAYA YOSHIO

    IPC: B01J41/14 ,  B01J47/00 ,  B01J47/12 ,  C08F2/00 ,  C08L23/06 ,  C08L23/16 ,  C08L25/06 ,  C08L25/18 ,  C08L27/22 ,  C08L39/00 ,  C08L25/08 ,  C08J5/22

    Abstract: A heterogeneous anion exchanger comprising from 35 to 85 mass% of an anion exchange resin and from 15 to 65 mass% of a binder polymer, wherein the anion exchange resin is made of a polymer having repeating units represented by the following formula (1): (see formula I) wherein R is a C3-8 alkylene group or an alkyleneoxyalkyl group having a total carbon number of from 4 to 9, R1 is a C1-4 alkyl group which may be substituted by a hydroxyl group, each of R2 and R3 is a C1-4 alkyl group, and X- is an anion, and wherein any hydrogen atom bonded to the benzene ring may be substituted by an alkyl group or a halogen atom.

    6.
    发明专利
    未知

    公开(公告)号：DE69303836D1

    公开(公告)日：1996-09-05

    申请号：DE69303836

    申请日：1993-02-18

    Applicant: ASAHI GLASS CO LTD

    Inventor： SUGAYA YOSHIO ,  TADA MISAKI ,  MIYAKE HARUHISA

    IPC: B01D61/44 ,  B01D61/46 ,  C08J5/22 ,  B01D61/48 ,  B01D71/80 ,  B01D67/00 ,  B01D69/02

    Abstract: A method for hydrogen ion-selective electrodialysis, wherein from an aqueous solution containing hydrogen ions on an anode side, the hydrogen ions are selectively permitted to permeate through a membrane to a cathode side, wherein the membrane is a double layer ion exchange membrane comprising an anion exchanger layer on the anode side and a cation exchanger layer on the cathode side, and the anion exchanger layer has an ion exchange capacity of from 0.5 to 4 meq/g dry resin, a fixed ion concentration of from 1 to 10 meq/g H2O, a thickness of from 0.1 to 150 mu m and an electrical resistance of at most 1 OMEGA .cm as measured in a 0.5 mol/ l sulfuric acid solution.

    8.
    发明专利
    未知

    公开(公告)号：FR2331547A1

    公开(公告)日：1977-06-10

    申请号：FR7633945

    申请日：1976-11-10

    Applicant: ASAHI GLASS CO LTD

    Inventor： YAMABE MASAAKI ,  MUNEKATA SEIJI ,  SUGAYA YOSHIO ,  JITSUGIRI YUKIO

    IPC: C07C69/63 ,  C07C20060101 ,  C07C69/62

    Abstract: A fluorinated acyl fluoride having an ester group which has the formula FOC(CF2)n-1CO2R wherein n is 2 to 4 and R represents an alcohol residual group is produced by reacting a perfluorolactone having the formula wherein n represents an integer of 2 to 4, with an alcohol having the formula ROH wherein R represents an alcohol residual group.

    10.
    发明专利
    未知

    公开(公告)号：DE69207071D1

    公开(公告)日：1996-02-08

    申请号：DE69207071

    申请日：1992-06-04

    Applicant: ASAHI GLASS CO LTD

    Inventor： SUGAYA YOSHIO ,  MIYAKE HARUHISA

    IPC: B01D61/24 ,  C01B7/07 ,  C01B7/19 ,  C01B17/90 ,  C01B21/46 ,  C08J5/22

    Abstract: A method for separating and recovering an acid, which comprises contacting to one side of a diffusion dialysis membrane an acid solution containing an acid having an acid radical with a formula weight of at most 200 and impurities and to the other side of the membrane water or a dilute acid solution, to separate and recover the acid in the solution, wherein the diffusion dialysis membrane comprises a cation exchange membrane having certain specific properties or comprises a main layer of an anion exchanger and a surface layer of the cation exchange membrane having certain specific properties formed on the main layer at the side of which is contact with the acid solution.

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