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公开(公告)号：JPS6268509A
公开(公告)日：1987-03-28
申请号：JP20725185
申请日：1985-09-19
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , YOSHIOKA TOSHIO , YOSHIKAWA SEIICHI
Abstract: PURPOSE:To maintain the performance of a sheet-like material made of fiber in a state of electret even when used in a watery place, by laminating a sheet- like materials made of ion-exchange fiber with a sheet-like material made of fiber in a state of electret or a sheet-like material made of glass fiber. CONSTITUTION:A sheet-like material is obtained using an ion-exchange fiber having the degree of water content of 0.1-10. Weight per unit area of the sheet-like material is more than 30g/m . A sheet-like material in a state of electret is obtained after a high-molecular substance which is capable of change to electret is formed into fiber or into films. And glass micro-wool composed of fine glass wool is formed into pulp which is capable of making paper so as to be formed into a sheet. The sheet-like material made of ion-exchange fiber, the sheet-like material of fiber in a state of electret or the sheet-like material of glass wool are laminated. When they are laminated, the sheet-like material of fiber in a state of electret can be formed into a sandwich form.
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公开(公告)号：JPS5949815B2
公开(公告)日：1984-12-05
申请号：JP5244281
申请日：1981-04-09
Applicant: Toray Industries
Inventor： YAMAMOTO AKINORI , NOYORI MASARU , SHIMAMURA SEIJI
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公开(公告)号：JPH10272343A
公开(公告)日：1998-10-13
申请号：JP771798
申请日：1998-01-19
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , FUJII YOSHINARI
Abstract: PROBLEM TO BE SOLVED: To improve heat resistance, solvent resistance, ozone resistance, acid and alkali resistance, by forming a polyphenylene-sulfone-based porous membrane that is useful as a microfiltration membrane or ultrafiltration membrane so that the peak temperature of tan δ obtained from a viscoelastisity- temperature dispersion curve is in a specified temperature range. SOLUTION: The polyphenylene sulfone-based porous membrane composed of polyphenylene-sulfone-based polymer, in which structural unit of chemical structure-Ar-SO2 - is indispensable, is prepared so that the peak temperature of tan δ obtained from the following viscoelasticity-temperature dispersion curve, in which dynamic viscoelasticity is measured from 25 to 350 deg.C, is in a range of 270-330 deg.C, whereby characteristics such as heat resistance against hot water washing or steam sterilization, chemical resistance against organic solvent, chemicals can be improved. In this case, dynamic viscoelasticity of polymer is measured at constant frequency by varying temperature using a dynamic viscoelasticity measuring device, and tan δ is determined from a formula tan δ=E'/E" (E' is dynamic viscoelasticity and E" is loss modulous).
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公开(公告)号：JPH0952028A
公开(公告)日：1997-02-25
申请号：JP20974095
申请日：1995-08-17
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , FUJII YOSHINARI , IWATANI HIDETSUGU
Abstract: PROBLEM TO BE SOLVED: To eliminate the generation of running-out of yarns during spinning and manufacture a hollow yarn membrane of good performance and quality by using a deaerated injection liquid when the hollow yarn membrane is spun. SOLUTION: When a hollow yarn membrane is manufactured by using an annular spinneret in the wet process or the dry wet process, an injection liquid of low coagulating properties is injected into a central pipe of the annular spinneret, and a deaerated injection liquid is used therein. As a deaeration process, a process of heating the injection liquid to the temperature higher than the room temperature or the like is adopted. When the hollow yarn membrane is manufactured as above-mentioned, the generation of running-out of yarns during spinning is almost eliminated, and the stabilized spinning can be carried out for a long time to improve workability and productivity and also improve the performance and quality of the hollow yarn membrane.
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公开(公告)号：JPH0952027A
公开(公告)日：1997-02-25
申请号：JP20973995
申请日：1995-08-17
Applicant: TORAY INDUSTRIES
Inventor： MINEGISHI SHINICHI , FUJII YOSHINARI , NOYORI MASARU
Abstract: PROBLEM TO BE SOLVED: To prevent the decomposition of a separating membrane during the discontinuation of the operation of a machine and not to lower the membrane performance at the time of restarting the operation by containing a HINOKI (Japanese cypress) family plant extraction component in filter treatment water when the filter treatment water is passed through a separating membrane. SOLUTION: When the water treatment is carried out for a separating membrane such as a hollow yarn membrane, pollutants are accumulated in a membrane surface following the progress of filtration. At that time, cleaning is carried out by passing filter treating water, and a HINOKI (Japanese cypress) family plant extraction component such as hinokithiol is contained in the filter treating water. The proliferation of microbes such as heat-resistant bacteria, lactic-acid bacillus and the like is controlled by the hinoki family plant extraction component, and the growth is prevented to the extremely low concentration. The decomposition of the membrane, therefore, is prevented during the discontinuation of the operation of a machine, and the operation can be, restarted immediately. A separating membrane used herein is a hollow yarn membrane, namely an ultra-filter membrane or a precision filter membrane provided with the pore diameter, the outer diameter, the inner diameter and the membrane thicknes of respectively 1-10μm, 100-2,000μm, 50-100μm and 20-500μm. The HINOKI family plant extraction component is hinokithiol, and the extraction component concentration is 1-1,000ppm.
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Patent Agency Ranking
公开(公告)号：JPH0679183A
公开(公告)日：1994-03-22
申请号：JP23564392
申请日：1992-09-03
Applicant: TORAY INDUSTRIES
Inventor： HIRATA NAMI , NOYORI MASARU , YOSHIOKA TOSHIO
IPC: B01J47/12
Abstract: PURPOSE:To realize the ion exchange of high accuracy and secure a large substantial effective space by one treatment. CONSTITUTION:An ion exchange felt is composed of a mixed base containing cation exchange groups and anion exchange groups. It is preferable that at least either of cation exchange groups or anion exchange groups, should be borne on an ion exchange fiber. Also the ion exchange fiber should preferably be of a conjugate state of an ion exchange polymer composed of a polystyrene derivative and a reinforcement material polymer composed of polyethylene.
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公开(公告)号：JPH03151050A
公开(公告)日：1991-06-27
申请号：JP28766489
申请日：1989-11-02
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , KUBO NAMI , YOSHIOKA TOSHIO
Abstract: PURPOSE:To simultaneously capture anions and cations up to the extreme limit by molding the sheet-like material specified in metal content and METSUKE (unit) weight to a specific ratio of mixed fibers of >=2 kinds of cation exchange fibers, anion exchange fibers and chelate fibers. CONSTITUTION:The ion exchangeable sheet-like material is molded by using the mixed fibers of >=2 kinds of the cation exchange fibers, anion exchange fibers and chelate fibers. The values (20>=(a/b) and 0.0008W ) of the metal in the sheet, b denotes the METSUKE (unit) weight (g/m ) of the sheet; W denotes the METSUKE (unit) weight (g/m ) of the sheet-like material; H denotes the thickness (mm) of the sheet-like material; are required to be satisfied in this case. The sheet like material is preferably the sheet-like material formed by mixing and sheeting strongly acidic cation exchange fibers and strongly basic anion exchange fibers.
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公开(公告)号：JPH03123642A
公开(公告)日：1991-05-27
申请号：JP25960789
申请日：1989-10-04
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: PURPOSE:To obtain an ion-exchange fiber having a large specific surface area and indicating an excellent ion-exchange capacity by treating the surface of the fiber with hydrogen peroxide. CONSTITUTION:After ion-exchange fiber is manufactured it is treated with hydrogen peroxide having a concn. of about 2-10% at room temp. for 0.5-500 hours. Since hydrogen peroxide is fairly highly reactive, it is sufficient to treat the fiber with such a solution as to permit its immersion. The ion-exchange fiber thus treated is entirely swollen due to a finely evolved gas in the solution and due to the oxidative reaction and the surface of the fiber is etched to cause subtle irregularities thereon and its specific surface area becomes very large. For this reason, the activating area contributing to the ion-exchange or adsorption becomes large and the water content is somewhat increased, leading to a more excellent ion-exchange capacity.
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公开(公告)号：JPH039798B2
公开(公告)日：1991-02-12
申请号：JP18905086
申请日：1986-08-12
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , YOSHIMURA AKIHIRO
IPC: C02F1/42
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公开(公告)号：JPH02126990A
公开(公告)日：1990-05-15
申请号：JP4107989
申请日：1989-02-21
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , YOSHIOKA TOSHIO , SUZUKI SHOROKU , NAKAGAWA YUKIO
Abstract: PURPOSE:To produce ultra pure water at a high rate with a compact device by treating the water treated by UV irradiating with an ion-exchange fiber. CONSTITUTION:In the production of ultra pure water to be used in the fields of electronic industries, pharmaceutical industries, etc., the water to be treated is firstly irradiated with UV to oxidize and decompose the contained org. impurities. The org. acids and carbon dioxide formed by the oxidative decomposition are then treated with the ion-exchange fiber consisting of a strongly basic anion-exchange fiber and/or a strongly acidic cation-exchange fiber. By this method, ultra pure water having >=18.2MOMEGA.cm (at 25 deg.C) electric resistivity and
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