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公开(公告)号：CA2347303A1
公开(公告)日：2001-11-10
申请号：CA2347303
申请日：2001-05-09
Applicant: TORAY INDUSTRIES
Inventor： UEMURA TADAHIRO , SHIMOYAMA NAOKI , YOKOTA MITSURU
IPC: A61M1/16 , C08J7/04 , G02B1/04 , C09D183/07 , C09D135/00 , C09D133/02 , C09D179/02
Abstract: The present invention relates to a surface-treated plastic article including a thin layer composed of a polymer complex on the surface. The surface-treated plastic article can be produced by a treatment with at least one kind of aqueous solutions of polymers having a weight average molecular weight of 200 or more. According to the present invention, the plastic articles, such as contact lenses, having superior transparency, wettability, oxygen permeability, and mechanical properties ca n be provided.
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公开(公告)号：DE69132403D1
公开(公告)日：2000-10-12
申请号：DE69132403
申请日：1991-01-31
Applicant: TORAY INDUSTRIES
Inventor： SHIRO KUNIYASU , HIMESHIMA YOSHIO , YAMADA SHINICHI , WATANABE TETSUO , UEMURA TADAHIRO , KURIHARA MASARU
Abstract: A composite membrane excellent in the resistance to organic solvent, heat and organic vapor and usable for pervaporation, gas separation and reverse osmosis, which is composed of a porous membrane mainly comprising a polymer having repeating units of formula (I) and an active layer formed thereon: -( Ph - S - Ph SO2 -)n (I) wherein Ph represents phenyl and n is a natural number.
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公开(公告)号：DE69030314T2
公开(公告)日：1997-08-14
申请号：DE69030314
申请日：1990-01-26
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TATSUO , FUJIMAKI HIDEO , UEMURA TADAHIRO
Abstract: This invention relates to a composite semipermeable membrane of low-pressure high desalination type having an excellent chlorine resistance and a method for the production thereof. This membrane is composed of a microporous supporting membrane and an ultrathin membrane covering said supporting membrane, wherein the ultrathin membrane comprises a polyamide prepared by the polycondensation of a dicarboxylic acid halide with piperazine and ethylenediamine as the main component and a molar fraction of ethylenediamine polyamide constituents to piperazine polyamide constituents is regulated to be in the range of 0.01 to 0.25, so that the membrane has a high desalination rate, a high fresh water generation rate and a sufficient chlorine durability. Thus it can be used in a small ultrapure water generator and a household water purifier and as a reverse osmosis membrane for treating waste water or the like.
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公开(公告)号：DE69122934T2
公开(公告)日：1997-04-03
申请号：DE69122934
申请日：1991-08-08
Applicant: TORAY INDUSTRIES
Inventor： IKEDA TOSHIHIRO , NAKAGAWA YUKIO , UEMURA TADAHIRO , KURIHARA MASARU
Abstract: A composite semipermeable membrane which has a high electrolytes rejection even when the concentration of the electrolytes in feed water is very low and even if the pH of feed water is not less than 8 is disclosed. The composite semipermeable membrane of the present invention comprises a microporous substrate and a cross-linked polyamide-based ultra-thin membrane laminated on the microporous substrate, the ultra-thin membrane having a covalently bonded quaternary nitrogen atom.
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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：DE3262993D1
公开(公告)日：1985-05-15
申请号：DE3262993
申请日：1982-08-06
Applicant: TORAY INDUSTRIES
Inventor： UEMURA TADAHIRO , KURIHARA MASARU , INOUE TETSUO
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公开(公告)号：FR2471801A1
公开(公告)日：1981-06-26
申请号：FR7931293
申请日：1979-12-20
Applicant: TORAY INDUSTRIES
Inventor： KURIHARA MASARU , UEMURA TADAHIRO , OKADA KIYOSHI
Abstract: Semipermeable membrane comprises crosslinked polymer consisting mainly of modified polyether amine obtd. by reaction of polyether having repeat unit of formula (I): (where X is Cl, Br or I; i and j are mole fraction, and i + j = 1, 0 =i =1, 0 = j =0.8, and polyamine having more than two prim. or sec. amino gps. (prim. amino is one or less). The membrane has good resistance to hydrolysis, chemicals, esp. chlorine, and mechanical property. The membrane is useful for the desalination of seawater or brine. In an example, a semipermeable membrane was obtd. by casting modified polyether amine of 4-(aminomethyl)piperidine on polysulphone membrane.
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公开(公告)号：BRPI0909826A2
公开(公告)日：2015-10-06
申请号：BRPI0909826
申请日：2009-03-13
Applicant: CHIYODA CORP , TORAY INDUSTRIES
Inventor： KOSHIZUKA HIROMI , TAKABATAKE HIROO , KAWAMURA KAZUSHIGE , TANIGUCHI MASAHIDE , SHINOHARA MASAYO , OGI SATOSHI , UEMURA TADAHIRO
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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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