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    Process for the production of lactam
    3.
    发明授权
    Process for the production of lactam 失效
    生产LACTAM的方法

    公开(公告)号：US3904608A

    公开(公告)日：1975-09-09

    申请号：US39471473

    申请日：1973-09-06

    Applicant: TORAY INDUSTRIES

    Inventor： TAKAYANAGI KAZUO ,  SONODA TAKESHI

    IPC: C07D223/12 ,  B01J27/00 ,  C07B61/00 ,  C07D201/04

    CPC classification number: C07D201/04 ,  Y02P20/52

    Abstract: A process for producing lactam by Beckmann rearrangement of cycloalkanone oxime. A cycloalkanone oxime is contacted at an elevated temperature, with sulfate or phosphate of metal ions selected from manganese, ferrous, ferric, cobalt, nickel, zinc and cadmium in the presence of at least one mole of hydrogen chloride per mole of the cycloalkanone oxime. Lactam can be recovered from the reaction mixture without producing ammonium sulfate as a by-product.

    7.
    发明专利
    未知

    公开(公告)号：IT1144818B

    公开(公告)日：1986-10-29

    申请号：IT6789581

    申请日：1981-06-29

    Applicant: TORAY INDUSTRIES

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

    IPC: C08L33/00 ,  B01D69/08 ,  B01D71/28 ,  B01D71/40 ,  B01D71/80 ,  B01D71/82 ,  C08L33/02 ,  C08L33/04 ,  C08L33/12 ,  C08L33/14 ,  B01D

    Abstract: A membrane for microfiltration, ultrafiltration or dialysis comprises a methyl methacrylate copolymer containing about 0.5 to 10 mol % of a monomer having sulfonate groups, and a methyl methacrylate copolymer containing about 0.5 to 10 mol % of a monomer having quaternary nitrogen-containing groups. It is manufactured by mixing those copolymers, dissolving the mixture in a solvent such as dimethylsulfoxide or dimethylformamide, and forming a membrane from a solution of the copolymers by casting or spinning. The membrane is particularly suitable for use in the purification of blood, and its most preferable form is hollow fibers. A method of preparing hollow fibers comprises extruding the copolymer solution through a spinneret having an annular orifice defined by a thin central tube while a liquid or gas is being injected into the central tube, and coagulating the extrusion product.

    8.
    发明专利
    未知

    公开(公告)号：AT289219T

    公开(公告)日：2005-03-15

    申请号：AT96304796

    申请日：1996-06-28

    Applicant: TORAY INDUSTRIES

    Inventor： SHIMAGAKI MASAAKI ,  FUKUI FUMIAKI ,  SONODA TAKESHI ,  SUGITA KOJI

    IPC: A61M1/16 ,  B01D63/02 ,  B01D65/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B01D71/68

    Abstract: Respective hollow fiber membranes suitable for use in removing undesired contaminants from blood, in particular in an artificial kidney, have: (1) per membrane area of 1.6 m , in vitro clearances for urea and phosphorus respectively of ≥ 195, and ≥ 180, ml/min, a beta 2-microglobulin clearance ≥ 44 ml/min and an albumin permeability ≤ 0.5%; (2) an albumin permeability ≤ 1.5% and an overall mass transfer coefficient Ko ≥ 0.0012 cm/min; and (3) a vitamin B12 dialyzance of ≥ 135 ml/min and an albumin permeability ≤ 3%. The membranes can be prepared by spinning hollow fibers from a spinning solution comprising a polysulfone, a hydrophilic polymer, a solvent and water, the spinning solution having a viscosity x at 30 DEG C of 25-130 poise and a quantity y % of water given by: The membranes can be incorporated into a hemodialyzer module by a method in which they are preimpregnated with a wetting agent, thereafter kept separate from one another by spacers and then inserted in the module.

    POLYSULFONE HOLLOW FIBER SEMIPERMEABLE MEMBRANE
    9.
    发明专利
    POLYSULFONE HOLLOW FIBER SEMIPERMEABLE MEMBRANE 未知

    公开(公告)号：CA2180222A1

    公开(公告)日：1996-12-31

    申请号：CA2180222

    申请日：1996-06-28

    Applicant: TORAY INDUSTRIES

    Inventor： SHIMAGAKI MASAAKI ,  FUKUI FUMIAKI ,  SONODA TAKESHI ,  SUGITA KOJI

    IPC: A61M1/16 ,  B01D63/02 ,  B01D65/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B01D71/68 ,  A61M1/18

    Abstract: Respective hollow fiber membranes suitable for use in removing undesired contaminants from blood, in particular in an artificial kidney have: (1) per membrane area of 1.6 m2, in vitro clearances for urea and phosphorus respectively of ml/min, a .beta.2-microglobulin clearance albumin permeability (2) an albumin permeability mass transfer coefficient Ko (3) a vitamin B12 dialyzance of albumin permeability The membranes can be prepared by spinning hollow fibers from a spinning solution comprising a polysulfone, a hydrophilic polymer, a solvent and water, the spinning solution having a viscosity x at 30.degree.C of 25-130 poise and a quantity y % of water given by: -0.01x + 1.45 The membranes can be incorporated into a hemodialyzer module by a method in which they are preimpregnated with a wetting agent, thereafter kept separate from one another by spacers and then inserted in the module.

    PROCEDIMIENTO DE FABRICACION DE UNA MEMBRANA SEMIPERMEABLE DE FIBRAS HUECAS DE POLISULFONA.
    10.
    发明专利
    PROCEDIMIENTO DE FABRICACION DE UNA MEMBRANA SEMIPERMEABLE DE FIBRAS HUECAS DE POLISULFONA. 未知

    公开(公告)号：ES2237760T3

    公开(公告)日：2005-08-01

    申请号：ES96304796

    申请日：1996-06-28

    Applicant: TORAY INDUSTRIES

    Inventor： SHIMAGAKI MASAAKI ,  FUKUI FUMIAKI ,  SONODA TAKESHI ,  SUGITA KOJI

    IPC: A61M1/16 ,  B01D63/02 ,  B01D65/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B01D71/68

    Abstract: LAS MEMBRANAS DE FIBRA HUECA RESPECTIVAS APROPIADAS PARA USAR EN LA ELIMINACION DE CONTAMINANTES NO DESEADOS DE LA SANGRE, EN PARTICULAR EN UN RIÑON ARTIFICIAL, TIENEN: (1) AREA POR MEMBRANA DE 1.6 M{SUP,2}, UN ESPACIO IN VITRO PARA UREA Y FOSFORO RESPECTIVAMENTE DE (MAYOR O IGUAL) 195, Y (MAYOR O IGUAL) 180, ML/MIN, UN ESPACIO {BE}{SUB,2}-MICROGLOBULINA DE (MAYOR O IGUAL) 44 ML/MIN Y PERMEABILIDAD DE ALBUMINA DE (MENOR O IGUAL) 0,5%; (2) UNA PERMEABILIDAD DE ALBUMINA DE (MENOR O IGUAL) 1,5% Y UN COEFICIENTE TOTAL DE MASA TRANSFERIBLE DE K{SUB,O} (MAYOR O IGUAL) 0,0012 CM/MIN; Y (3) UN DIALIZANTE DE VITAMINA B{SUB,12} DE (MAYOR O IGUAL) 135 ML/MIN Y UNA PERMEABILIDAD DE ALBUMINA DE (MENOR O IGUAL) 3%. LAS MEMBRANAS PUEDEN SER PREPARADAS MEDIANTE GIRO DE FIBRA HUECA DE UNA SOLUCION DE GIRO QUE CONTIENE UNA POLISULFONA, UN POLIMERO HIDROFILO , UN DISOLVENTE Y AGUA, TENIENDO LA SOLUCION DE GIRO UNA VISCOSIDAD X A 30 (GRADOS) C DE 25-130 DE EQUILIBRIO Y UNA CANTIDAD Y% DE AGUA DADO POR: -0,01X+ 1,45 (MENOR O IGUAL) -0,01X + 2,25 LAS MEMBRANAS PUEDEN SER INCORPORADAS A UN MODULO HEMODIALIZADOR POR UN METODO EN EL QUE SON PREIMPREGNADAS CON UN AGENTE HUMECTANTE, Y A PARTIR DE ENTONCES GUARDADAS SEPARADAMENTE LA UNA DE LA OTRA POR ESPACIADORES Y ENTONCES INSERTADAS EN EL MODULO.

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