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公开(公告)号：JPH06126278A
公开(公告)日：1994-05-10
申请号：JP27998292
申请日：1992-10-19
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , YOSHIOKA TOSHIO , SHIMIZU HIDEHIRO
Abstract: PURPOSE:To provide a water purifying apparatus capable of absorbing and removing a harmful component in drinking water, a malodorous component and fungi, and obtaining taste water for a long period. CONSTITUTION:The water purifying apparatus has an ion-exchange body as a water purifying component, and the ion type of the exchange group of the ion-exchange body is a mixture form of one or more kinds selected from Fe, Ca Mg, Ag, K, Ni and Co.
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公开(公告)号：JPH0550062A
公开(公告)日：1993-03-02
申请号：JP12619991
申请日：1991-05-29
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: PURPOSE:To provide a precoating method which improves the quality of treated water and prolongs the life of a precoating material. CONSTITUTION:A powder ion exchange resin (a) and ion exchange fibers (b) consisting of a polyacrylic ion exchange polymer having a carboxyl group and a polymer for reinforcement are used as the precoating material in this method for purifying an aq. soln. with a precoated filter.
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公开(公告)号：JPH04338234A
公开(公告)日：1992-11-25
申请号：JP10752891
申请日：1991-05-13
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , SHIMIZU HIDEHIRO , OKAZAKI OSAMU
Abstract: PURPOSE:To obtain the sheet-like absorbent which has a large adsorption surface area, allows the easy and inexpensive selective adsorption of materials to be adsorbed and has excellent workability to filters by forming a sheet-like material of extremely fine fibers consisting of a polymonovinyl arom. compd. having specified or lower single fiber fineness. CONSTITUTION:Three-component conjugate fibers consisting of a sea component of polyester, etc., an island-sheath component of polystyrene, etc., and an island- core component of polypropylene, etc., are crimped by a crimper. The fibers are then fabricated to felt shape after cutting. This felt is subjected to the hydrolysis of the polyester with an alkali, such as aq. sodium hydroxide soln. The sea component of the sea and island type three-component conjugate fibers is dissolved to obtain the extremely fine fibers in such a manner, by which the signal fiber fineness is reduced to
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公开(公告)号：JPH04334545A
公开(公告)日：1992-11-20
申请号：JP10752791
申请日：1991-05-13
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , YOSHIOKA TOSHIO , ARAI KATSUHIKO
Abstract: PURPOSE:To provide a sheet-shaped adsorbing material having a large area and excellent adsorbing capacity and capable of selectively adsorb matter to be adsorbed and composed of a highly practical extremely fine fiber excellent in filter molding processability. CONSTITUTION:A sheet-shaped adsorbing material is composed of an extremely fine polyester fiber with single yarn fineness of one denier or less.
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公开(公告)号：JPH04283203A
公开(公告)日：1992-10-08
申请号：JP4516991
申请日：1991-03-11
Applicant: TORAY INDUSTRIES
Inventor： NOYORI MASARU , HENMI MASAHIRO , YOSHIOKA TOSHIO
Abstract: PURPOSE:To obtain inexpensively and easily a practical, highly pure ion exchanger by performing the crosslinking and sulfonation reaction of a fibrous molding having an aromatic ring at a low temperature or for a short time. CONSTITUTION:A process for reacting a fibrous molding essentially consisting of an aromatic polymer in concentrated sulfuric acid containing a formaldehyde source to introduce simultaneously crosslinking groups and at least 0.05mol, per mol of the aromatic rings of the polymer, sulfonic acid groups into the molding, wherein 0.001-0.5wt.%, based on the reaction solution, at least one element selected from among Ag, Ni and Fe is added to the reaction solution.
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Patent Agency Ranking
公开(公告)号：JPH0368491A
公开(公告)日：1991-03-25
申请号：JP20729189
申请日：1989-08-09
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: PURPOSE:To prolong the filtration life of a precoat and to improve the quality of treated water by using a powdery ion-exchange resin and an ion-exchange fiber as the precoat material and continuously or stepwise decreasing the ratio of both materials in the circulating direction of water to be treated in the precoat layer. CONSTITUTION:A powdery ion-exchange resin and an ion-exchange fiber are used as the precoat material, and the ratio of the fiber to resin is continuously or stepwise decreased in the circulating direction of water to be treated in the precoat layer. As a result, amorphous iron is adsorbed by the ion-exchange fiber-richer layer without causing significant contraction. A floc of the ion- exchange fiber is then formed in the ion-exchange resin-richer layer with the powdery ion-exchange resin as the nucleus to impart appropriate porosity and compressive strength. Consequently, the service life of the precoat material is drastically prolonged, and the quality of treated water is improved by the high ion exchangeability of the fiber having a large surface area.
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公开(公告)号：JPH0356188A
公开(公告)日：1991-03-11
申请号：JP19334889
申请日：1989-07-25
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
IPC: C02F1/42
Abstract: PURPOSE:To extend the filtering life of a precoating layer and to enhance the quality of treated water by using a powder ion exchange resin and an ion exchange filter as a precoating material and setting the water content of the ion exchange fiber to a specific numerical value. CONSTITUTION:A powder ion exchange resin pref. has a particle size of about 1 - 250 mum. It is important that the water content of an ion exchange fiber is within a range of 1.0 - 5.0 and there is no special limit in the shape of said fiber but it pref. consists of an ion exchange polymer and a reinforcing polymer and the fiber length thereof is pref. about 0.1 - 1mm. Therefore, when the powder ion exchange resin and the ion exchange fiber are stirred and mixed in water, the ion exchange fiber becomes the nucleus of the powder ion exchange resin to form floc and a proper void ratio and compression strength are imparted to drastically extend the life of a precoating material and, by the excellent ion exchange capacity of the fiber having a large surface area, the quality of treated water can be enhanced in addition.
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公开(公告)号：JPH0310388B2
公开(公告)日：1991-02-13
申请号：JP8760387
申请日：1987-04-09
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , YOSHIOKA TOSHIO , NOYORI MASARU
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公开(公告)号：JPH03185A
公开(公告)日：1991-01-07
申请号：JP13077789
申请日：1989-05-24
Applicant: TORAY INDUSTRIES
Inventor： KUBO NAMI , NOYORI MASARU , MORI SHIGEKI , ITO TSUKASA
Abstract: PURPOSE:To hold the strength of a precoat material in a filter and to effectively prevent the compaction of a precoat layer in the filter by using ion exchange fiber constituted of powder ion exchange resin, ion exchange polymers and reinforcing polymers. CONSTITUTION:At the time of purifying water used in a nuclear power station or the like by a precoat filter, as a precoat material, ion exchange fiber constituted of powder ion exchange resin, ion exchange polymers such as crosslinked and insolubilized polystyrene-series compounds and reinforcing polymers such as poly-alpha-olefine is used. By this method, the ion exchange resin contg. the reinforcing polymers becomes the nucleus of the powder ion exchange resin to form a floc body and to provide the precoat material with suitable void ratio and compressive strength. Thus, the service life of the precoat material is remarkably prolonged and the quality of treated water is furthermore improved.
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公开(公告)号：JPH02289137A
公开(公告)日：1990-11-29
申请号：JP10475089
申请日：1989-04-26
Applicant: TORAY INDUSTRIES , TOYO FLOCKING CO LTD
Inventor： HARANOYA TOMOJI , IWAMOTO SHIGEKI , NOYORI MASARU , YOSHIOKA TOSHIO
Abstract: PURPOSE:To obtain the title flocked product excellent in form processability, having high ion exchange ability, thus suitable for toxic substance-preventive filters, etc., by introducing core yarn into a space between a pair of specific electrodes, and during the process, implanting the adhesive layer on the core yarn with specific pulp. CONSTITUTION:Core yarn 50-50000 in total denier peripherally coated with an adhesive is introduced into a space between (A) at least a pair of electrodes with positive voltage applied on one of them and negative voltage on the other and either of the voltages put to pole change to form an electrostatic field so that attractive and repulsive forces are alternately act between both the electrodes, (B) a pair of electrodes with positive voltage applied on one of them and negative voltage on the other to form an electrostatic field so that an attractive force acts, or (C) at least a pair of electrodes with either positive or negative voltage applied on both the electrodes to form an electric field so that a repulsive force acts; during the process, the adhesive layer on the core yarn is implanted with pulp prepared by cutting a fibrous ion exchange form 0.1-10meq/g in the amount of ion exchange group to a length of 0.1-3mm.
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