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公开(公告)号：US3896061A
公开(公告)日：1975-07-22
申请号：US38638873
申请日：1973-08-07
Applicant: TORAY INDUSTRIES
Inventor： TANZAWA HIROSHI , SAKAI YOSHITADA , MATSUSHITA TAKAO , FUJII YOSHISHIGE , SUGITA KOUJI , MAEKAWA HARUKI
CPC classification number: D01D5/24 , B01D69/08 , B01D71/40 , C08L33/12 , C08L2205/02 , C08L2666/04
Abstract: Transparent hydrogels comprising isotactic polymethylmethacrylate and syndiotactic polymethylmethacylate make semi-permeable membranes of good strength and permeability which have particular utility in hemodialysis.
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公开(公告)号：ES2050606B1
公开(公告)日：1994-12-01
申请号：ES9201796
申请日：1992-09-02
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , EUMURA TADAHIRO
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公开(公告)号：DE69211731D1
公开(公告)日：1996-08-01
申请号：DE69211731
申请日：1992-03-11
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , UEMURA TADAHIRO
Abstract: A process of producing a composite semipermeable membrane with high performance, which does not involve a highly ignitable solvent or a chlorofluorocarbon solvent which destructs the environment is disclosed. In the process of the present invention, a polyfunctional amine solution and a polyfunctional acid halide solution in a hydrocarbon-based solvent with a flash point of not lower than 10 C are applied on a surface of a microporous substrate to allow interfacial polycondensation reaction so as to form a cross-linked polyamide-based ultra-thin membrane superposed on the microporous substrate. Then a gas is blown on the surface of the ultra-thin membrane so as to evaporate the hydrocarbon-based solvent, which gas has a velocity at the surface of 2 - 20 m/sec., a temperature of 10 - 80 C that is lower than the flash point of the hydrocarbon-based solvent, and an absolute humidity of not less than 1 g of water per 1 kg of dry gas.
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公开(公告)号：ES2050606A1
公开(公告)日：1994-05-16
申请号：ES9201796
申请日：1992-09-02
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , EUMURA TADAHIRO
Abstract: UN PROCEDIMIENTO PARA LA PRODUCCION DE UNA MEMBRANA SEMIPERMEABLE. SE DESCRIBE UN PROCEDIMIENTO PARA LA PRODUCCION DE UNA MEMBRANA SEMIPERMEABLE COMPUESTA QUE TIENE UN ALTO RENDIMIENTO, EL CUAL NO SUPONE LA UTILIZACION DE DISOLVENTE FACILMENTE INFLAMABLE NI DISOLVENTE CLOROFLUOROCARBONADO QUE DESTRUYE EL MEDIO AMBIENTE. EN EL PROCEDIMIENTO DE LA PRESENTE INVENCION, SE APLICAN UNA SOLUCION DE AMINA POLIFUNCIONAL Y UNA SOLUCION DE HALURO DE ACIDO POLIFUNCIONAL EN UN DISOLVENTE A BASE DE HIDROCARBURO CON UN PUNTO DE INFLAMACION QUE NO ES INFERIOR A 10GC SOBRE UNA SUPERFICIE DE UN SUSTRATO MICROPOROSO PARA QUE PUEDA TENER LUGAR UNA REACCION DE POLICONDENSACION INTERFASICA COMO RESULTADO DE LA CUAL SE FORMA UNA MEMBRANA ULTRAFINA A BASE DE POLIAMIDA RETICULADA SUPERPUESTA AL SUSTRATO MICROPOROSO. SE INSUFLA ENTONCES UN GAS SOBRE LA SUPERFICIE DE LA MEMBRANA ULTRAFINA CON EL FIN DE EVAPORAR EL DISOLVENTE A BASE DE HIDROCARBURO, GAS QUE TIENE UNA VELOCIDAD EN LA SUPERFICIE DE 2-20 M/SEG., UNA TEMPERATURA DE 10-80GC QUE ES INFERIOR AL PUNTO DE INFLAMACION DEL DISOLVENTE A BASE DE HIDROCARBURO, Y UNA HUMEDAD ABSOLUTA NO INFERIOR A 1 G. DE AGUA POR 1 KG. DE GAS SECO.
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公开(公告)号：DK0503596T3
公开(公告)日：1996-07-29
申请号：DK92104191
申请日：1992-03-11
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , UEMURA TADAHIRO
Abstract: A process of producing a composite semipermeable membrane with high performance, which does not involve a highly ignitable solvent or a chlorofluorocarbon solvent which destructs the environment is disclosed. In the process of the present invention, a polyfunctional amine solution and a polyfunctional acid halide solution in a hydrocarbon-based solvent with a flash point of not lower than 10 C are applied on a surface of a microporous substrate to allow interfacial polycondensation reaction so as to form a cross-linked polyamide-based ultra-thin membrane superposed on the microporous substrate. Then a gas is blown on the surface of the ultra-thin membrane so as to evaporate the hydrocarbon-based solvent, which gas has a velocity at the surface of 2 - 20 m/sec., a temperature of 10 - 80 C that is lower than the flash point of the hydrocarbon-based solvent, and an absolute humidity of not less than 1 g of water per 1 kg of dry gas.
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Patent Agency Ranking
公开(公告)号：CA2062638A1
公开(公告)日：1992-09-13
申请号：CA2062638
申请日：1992-03-11
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , UEMURA TADAHIRO
IPC: B01D71/82 , B01D69/12 , B01D71/56 , C08G69/26 , C08G69/46 , B05D5/00 , B01D61/02 , B01D69/10 , B01D71/68
Abstract: A process of producing a composite semipermeable membrane with high performance, which does not involve a highly ignitable solvent or a chlorofluorocarbon solvent which destructs the environment is disclosed. In the process of the present invention, a polyfunctional amine solution and a polyfunctional acid halide solution in a hydrocarbon-based solvent with a flash point of not lower than 10.degree.C are applied on a surface of a microporous substrate to allow interfacial polycondensation reaction so as to form a cross-linked polyamide-based ultra-thin membrane superposed on the microporous substrate. Then a gas is blown on the surface of the ultra-thin membrane so as to evaporate the hydrocarbon-based solvent, which gas has a velocity at the surface of 2 - 20 m/sec., a temperature of 10 - 80.degree.C that is lower than the flash point of the hydrocarbon-based solvent, and an absolute humidity of not less than 1 g of water per 1 kg of dry gas.
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公开(公告)号：DE2742588A1
公开(公告)日：1978-03-30
申请号：DE2742588
申请日：1977-09-22
Applicant: TORAY INDUSTRIES
Inventor： MORITA MINORU , FUJII YOSHISHIGE , TANIGUCHI YASUO
Abstract: Sterilization of a dialyzer, using a saturated and wet semipermeable membrane and irradiating said dialyzer in the presence of an antibacterial agent. The method is especially effective and safe, affords elimination of labor for preparation for dialysis, and has special utility when the dialyzer is an artificial kidney containing a multiplicity of hollow filament semipermeable membranes.
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公开(公告)号：DE69211731T2
公开(公告)日：1996-10-31
申请号：DE69211731
申请日：1992-03-11
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , UEMURA TADAHIRO
Abstract: A process of producing a composite semipermeable membrane with high performance, which does not involve a highly ignitable solvent or a chlorofluorocarbon solvent which destructs the environment is disclosed. In the process of the present invention, a polyfunctional amine solution and a polyfunctional acid halide solution in a hydrocarbon-based solvent with a flash point of not lower than 10 C are applied on a surface of a microporous substrate to allow interfacial polycondensation reaction so as to form a cross-linked polyamide-based ultra-thin membrane superposed on the microporous substrate. Then a gas is blown on the surface of the ultra-thin membrane so as to evaporate the hydrocarbon-based solvent, which gas has a velocity at the surface of 2 - 20 m/sec., a temperature of 10 - 80 C that is lower than the flash point of the hydrocarbon-based solvent, and an absolute humidity of not less than 1 g of water per 1 kg of dry gas.
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公开(公告)号：AT139713T
公开(公告)日：1996-07-15
申请号：AT92104191
申请日：1992-03-11
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , UEMURA TADAHIRO
Abstract: A process of producing a composite semipermeable membrane with high performance, which does not involve a highly ignitable solvent or a chlorofluorocarbon solvent which destructs the environment is disclosed. In the process of the present invention, a polyfunctional amine solution and a polyfunctional acid halide solution in a hydrocarbon-based solvent with a flash point of not lower than 10 C are applied on a surface of a microporous substrate to allow interfacial polycondensation reaction so as to form a cross-linked polyamide-based ultra-thin membrane superposed on the microporous substrate. Then a gas is blown on the surface of the ultra-thin membrane so as to evaporate the hydrocarbon-based solvent, which gas has a velocity at the surface of 2 - 20 m/sec., a temperature of 10 - 80 C that is lower than the flash point of the hydrocarbon-based solvent, and an absolute humidity of not less than 1 g of water per 1 kg of dry gas.
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公开(公告)号：DE2341392A1
公开(公告)日：1974-03-07
申请号：DE2341392
申请日：1973-08-16
Applicant: TORAY INDUSTRIES
Inventor： OTSU SHIGA , TANZAWA HIROSHI , SAKAI YOSHITADA , KAMAKURA KANAGAWA , MATSUSHITA TAKAO , FUJII YOSHISHIGE , SUGITA KOUJI , MAEKAWA HARUKI
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