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    FLUID TREATMENT APPARATUS USING HOLLOW FIBER
    42.
    发明专利
    FLUID TREATMENT APPARATUS USING HOLLOW FIBER 失效

    公开(公告)号：JPH03238027A

    公开(公告)日：1991-10-23

    申请号：JP3355790

    申请日：1990-02-14

    Applicant: TORAY INDUSTRIES

    Inventor： AKAMATSU HIROATSU ,  SONODA TAKESHI

    IPC: B01D63/02 ,  A61M1/18

    Abstract: PURPOSE:To enhance capacity and to achieve miniaturization by winding the first wire material around a permselective hollow fiber to form each of unit hollow fiber elements and gathering the fiber elements to wind the second wire material around the gathered elements and gathering the obtained hollow fiber bundles to receive the same in a cylindrical body. CONSTITUTION:The first wire material 12 different from a hollow fiber 11 having permselectivity is spirally wound around one hollow fiber or two hollow fibers to form a unit hollow fiber element A. Four or more units of the unit hollow fiber elements A are gathered and the second wire material different from the hollow fiber 11 is spirally wound around the elements A to form a hollow fiber bundle B. Five or more hollow fiber bundles B are received in a cylindrical container 1. As a result, capacity is enhanced and miniaturization can be achieved and handling becomes easy. When this liquid treatment apparatus is adapted to an artificial kidney dialyser, the dialytic capacity of urea is enhanced and the time required in dialysis is shortened and handling becomes easy.

    FLUORIDE TYPE WET SEPARATION MEMBRANE AND PREPARATION THEREOF
    47.
    发明专利
    FLUORIDE TYPE WET SEPARATION MEMBRANE AND PREPARATION THEREOF 失效

    公开(公告)号：JPS5898105A

    公开(公告)日：1983-06-10

    申请号：JP19562281

    申请日：1981-12-07

    Applicant: TORAY INDUSTRIES

    Inventor： NAGAOKA SHIYOUJI ,  TAKENAKA SHIGENORI ,  SONODA TAKESHI ,  TANAKA KAZUSANE ,  NOGI TATSUO

    IPC: D01F6/12 ,  A61M1/16 ,  B01D71/34 ,  B01D71/36

    Abstract: PURPOSE:To prepare a fluoride type humidity separation membrane having a network structure formed by uniform porosity and suitable for precise filtration, by a method wherein a resin based on a vinylidene fluoride polymer is dissolved in a solvent and the obtained solution is formed into a membrane in a wet state. CONSTITUTION:A resin based on a vinylidene fluoride polymer, a vinylidene fluoride/tetrafluoroethylene copolymer or one prepared by mixing both polymer and copolymer in a range of 5/95-20/80 on the wt. basis is dissolved in dimethylsulfoxide or a solvent prepared by adding 5-15wt% glycerine to dimethylsulfoxide to obtain a stock liquid and this stock liquid is formed into a film in a coagulating bath such as a water bath under a wet condition to obtain a fluoride type wet separation membrane having a network structure of which the surface and the interior are formed from uniform multiple pores with pore sizes of 0.01-1mu and water content of 30% or more when water is contained. In addition, the above stated stock liquid can be formed into a hollow yarn separation membrane by dry and wet spinnings.

    SEPARATING MEMBRANE OF METHYL METHACRYLATE TYPE
    48.
    发明专利
    SEPARATING MEMBRANE OF METHYL METHACRYLATE TYPE 失效

    公开(公告)号：JPS5714640A

    公开(公告)日：1982-01-25

    申请号：JP8910080

    申请日：1980-07-02

    Applicant: TORAY INDUSTRIES

    Inventor： SONODA TAKESHI ,  TANAKA YOSHITAKA ,  TAKENAKA SHIGENORI ,  NOGI TATSUO

    IPC: C08L33/00 ,  B01D69/08 ,  B01D71/28 ,  B01D71/40 ,  B01D71/80 ,  B01D71/82 ,  C08L33/02 ,  C08L33/04 ,  C08L33/12 ,  C08L33/14

    Abstract: PURPOSE:A separating membrane especially useful for a hemocatharsis system, exhibiting a wide range of permeability corresponding to purposes through blending or adjustment of an additive, etc. by the same production process, obtained from a mixture of specific two kinds of methyl methacrylate copolymer. CONSTITUTION:A methyl methacrylate copolymer containing 0.5-10mol% sulfonic acid group-containing polymerizable monomer, preferably sodium p-styrene sulfonate is blended with a methyl methacrylate copolymer containing 0.5-10mol% quaternary nitrogen group-containing polymerizable monomer, preferably 2-metha- cryloyloxyethyltrimethylammonium chloride in a weight ratio 1:9-9:1, preferably 2:1-1:2. The average molecular weight of these polymer materials is >=1000,000, preferably 200,000-800,000 in blending. Dimethyl sulfoxide is preferable as a solvent.

    POLYSULFONE HOLLOW FIBER TYPE ARTIFICIAL KIDNEY AND ITS PRODUCTION
    50.
    发明专利
    POLYSULFONE HOLLOW FIBER TYPE ARTIFICIAL KIDNEY AND ITS PRODUCTION 失效

    公开(公告)号：JPH11104235A

    公开(公告)日：1999-04-20

    申请号：JP26673797

    申请日：1997-09-30

    Applicant: TORAY INDUSTRIES

    Inventor： SONODA TAKESHI ,  SUGITA KOJI

    IPC: A61M1/18 ,  B01D69/02 ,  B01D71/68

    Abstract: PROBLEM TO BE SOLVED: To provide a polysulfone type hollow fiber type artificial kidney which has high water permeability, is high in performance to remove uremic substances and is excellent in terms of safety without the admission of permeation of endotoxin even if this artificial kidney has moderate albumin permeability. SOLUTION: This process for production consists in confining the solvent remaining in the hollow fibers of the artificial kidney comprising the hollow fiber membranes consisting of a polysulfone resin contg. a hydrophilic high- molecular material to a specific value or below by washing, then executing a sterilization treatment by using gamma rays and electron beams and insolubilizing the hydrophilic high-molecular material by crosslinking. As a result, the permeability of the albumin is specified to >=0.2 to

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