中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

80 records (took 0.025 seconds)

    DEOXYGENATING FIBER
    11.
    发明专利
    DEOXYGENATING FIBER 失效

    公开(公告)号：JPH0483532A

    公开(公告)日：1992-03-17

    申请号：JP19981190

    申请日：1990-07-27

    Applicant: TORAY INDUSTRIES

    Inventor： HIRATA NAMI ,  YOSHIOKA TOSHIO ,  NOYORI MASARU

    IPC: B01D15/04 ,  B01J20/26 ,  C02F1/42 ,  C02F1/58

    Abstract: PURPOSE:To obtain a deoxygenating fiber capable of treating an object at high flow velocity and showing high deoxygenating efficiency by adding a metal having redox function to an ion exchange fiber. CONSTITUTION:An iron exchange fiber consisting of an ion exchange polymer such as polystyrene having an ion exchange group such as a chelate group and a reinforcing polymer such as a poly-alpha-olefin is used. A metal having redox function such as ion or copper is reacted with the ion exchange fiber and the metal ion is bonded to the ion exchange fiber to obtain a deoxygenating fiber. The deoxygenating fiber of high performance is obtained by this method and, therefore, the concn. of oxygen can be lowered to a limit and high speed treatment becomes possible because of high deoxygenating velocity.

    SYSTEM FOR PRODUCING ULTRAPURE WATER
    12.
    发明专利
    SYSTEM FOR PRODUCING ULTRAPURE WATER 失效

    公开(公告)号：JPH0478483A

    公开(公告)日：1992-03-12

    申请号：JP19274290

    申请日：1990-07-19

    Applicant: TORAY INDUSTRIES

    Inventor： HIRATA NAMI ,  YOSHIOKA TOSHIO ,  NOYORI MASARU

    IPC: C02F1/44 ,  C02F1/32 ,  C02F1/42

    Abstract: PURPOSE:To obtain ultrapure water in large quantities at a high flow rate by combining a UV-filter membrane-cartridge polisher circulation system with a use point column packed with ion exchange fibers. CONSTITUTION:When pure water obtd. from a primary pure water system is continuously circulated among UV, a cartridge polisher and a filter membrane to collect ultrapure water, this water is passed through a column packed with ion exchange fibers in other line and ultrapure water is obtd. in large quantities at a high flow rate. The ion exchange fibers are preferably polystyrene-based fibers. For example, raw water 13 is passed through a prefilter 1, RO 2 and an ion exchange device 3 and the resulting primary pure water is stored once in a tank 4, passed through UV 6, a cartridge polisher 7 and UF 8 by a pump 5, well circulated among the UV 6, the polisher 7 and the UF 8 and then passed through a use point column 9. Ultrapure water 14 is obtd. from MF 10.

    ADSORBING MATERIAL
    15.
    发明专利
    ADSORBING MATERIAL 失效

    公开(公告)号：JPH02107329A

    公开(公告)日：1990-04-19

    申请号：JP26241988

    申请日：1988-10-17

    Applicant: TORAY INDUSTRIES

    Inventor： NOYORI MASARU ,  YOSHIOKA TOSHIO

    IPC: B01J20/26

    Abstract: PURPOSE:To adsorb harmful substances by providing an adsorbing material composed of a product and a composite fiber of multiple core structure with scattering components on the base component, both consisting of an aromatic monovinyl polymer devoid of ion-exchange group and the thermoplastic polymer other than the aforesaid polymer. CONSTITUTION:Small particles in the air, harmful substances in the cigarette smoke or impurities in the water can be adsorbed for removal easily and efficiently at low costs by using an adsorbing material composed of a product consisting of an aromatic monovinyl polymer devoid of ion-exchange group and a thermoplastic polymer such as polyalpha-olefin other than the aforesaid polymer (a simple mixture of the fibers made from these two polymers or a core- sheath composite fiber made from the polymer consisting mainly of aromatic monovinyl polymer as a sheath component and the polymer consisting mainly of thermoplastic polymer as a core component) and of an axially continuous composite fiber of multiple core structure wherein, on the base component of aromatic monovinyl polymer, a plurality of raised components of the polymer consisting mainly of the thermoplastic polymer other than the aforesaid polymer is scattered.

    ION EXCHANGEABLE SHEET LIKE ARTICLE AND PREPARATION THEREOF
    16.
    发明专利
    ION EXCHANGEABLE SHEET LIKE ARTICLE AND PREPARATION THEREOF 失效

    公开(公告)号：JPH0252046A

    公开(公告)日：1990-02-21

    申请号：JP20417488

    申请日：1988-08-17

    Applicant: TORAY INDUSTRIES

    Inventor： NOYORI MASARU ,  TOYOKAWA AKIKO ,  YOSHIOKA TOSHIO

    IPC: C08J5/22 ,  B01J47/12

    Abstract: PURPOSE:To obtain a high capacity sheet like article having high strength and excellent in water resistance and collection capacity by preparing an ion exchange sheet like article by using an ion exchange fiber as a main component without almost mixing a heavy metal. CONSTITUTION:In a papermaking apparatus whose surface is formed from a molded product composed of an org. polymer, an ion exchange fiber is formed into a sheet like article according to a wet papermaking process using pure water having electric specific resistance of 5KOMEGA.cm or more. In the papermaking process, the elution of a metal ion and the mixing thereof with the ion exchange fiber are prevented to adjust the content of a heavy metal in the sheet like article to 20ppm or less. The ion exchange fiber is formed from a polystyrenic or polyvinyl alcohol type base polymer into which various chelate groups such as a cation exchange group, an aninon exchange group or the like are introduced. By this method, a sheet like article improved in the analytical/measuring accuracy of a trace element is obtained.

    SCAVENGING MATERIAL OF IODINE COMPOUND
    17.
    发明专利
    SCAVENGING MATERIAL OF IODINE COMPOUND 失效

    公开(公告)号：JPS6312345A

    公开(公告)日：1988-01-19

    申请号：JP15398986

    申请日：1986-07-02

    Applicant: TORAY INDUSTRIES

    Inventor： NOYORI MASARU ,  KUBO NAMI ,  YOSHIKAWA SEIICHI

    IPC: G21F9/02 ,  B01J20/26 ,  B01J47/12 ,  C01B7/14 ,  C02F1/42 ,  C02F1/58 ,  G21F9/00 ,  G21F9/12

    Abstract: PURPOSE:To obtain the titled material capable of scavenging an iodine compd. which scavenges iodine and methyl iodide at the same time contd. in a gas or a liquor by binding silver to an ion exchange fiber. CONSTITUTION:The ion exchange fiber is introduced a cation exchange group such as sulfonic acid group, etc., and a chelate group such as aminocarboxylic acid group, etc., to a base polymer such as polystyrene, etc. The silver is binded to said ion exchange fiber by treating with an aqueous solution of silver nitrate in >=0.01M an concn. and in an amount of >=0.5 times equivalent per an ion exchange capacity of the ion exchange fiber. The amount of silver contd. in the on exchange fiber is >=0.1meq/g on the dry weight based on the on exchange fiber. The form of said fiber is preferably a staple having about 0.1-3mm length in the case of scavenging iodine. The sheet like material made by using the staple is preferable in the case of applying it in the gas. The obtd. scavenging material is effectively used to the recovery of iodine from a natural gas, etc., and the removal of a radioactive iodine compd. contg. in a waste gas and a waste liquor coming from an atomic energy plant.

    METHOD FOR FILTERING GAS
    18.
    发明专利
    METHOD FOR FILTERING GAS 失效

    公开(公告)号：JPS62247820A

    公开(公告)日：1987-10-28

    申请号：JP9267586

    申请日：1986-04-22

    Applicant: TORAY INDUSTRIES

    Inventor： NOYORI MASARU ,  YOSHIOKA TOSHIO ,  YOSHIKAWA SEIICHI

    IPC: B01D39/14 ,  B01D53/04

    Abstract: PURPOSE:To efficiently perform the filter of gas for a long time by treating gas to be treated by means of a granular adsorbent and thereafter treating it by ion exchange fiber. CONSTITUTION:Gas contg. an unavailable material such as i.e. NH3 or an available material is treated by activated carbon, impregnated carbon which is impregnated with chemicals capable of adsorbing aidic gas and alkaline gas and a granular adsorbent such as silica gel and alumina gel and thereafter treated by ion exchange fiber such as cation exchange fiber, anion exchange fiber and chelate exchange fiber respectively having a cation exchange group, an anion exchange group and a chelate group. Air-permeable resistance is reduced and simultaneously high-degree filter of gas is efficiently performed for a long time by performing two treatments in such a way.

    METHOD AND APPARATUS FOR MANUFACTURING REGENERATED TETRAALKYLAMMONIUM HYDROXIDE
    20.
    发明专利
    METHOD AND APPARATUS FOR MANUFACTURING REGENERATED TETRAALKYLAMMONIUM HYDROXIDE 失效

    公开(公告)号：JP2002253931A

    公开(公告)日：2002-09-10

    申请号：JP2001054049

    申请日：2001-02-28

    Applicant: TORAY INDUSTRIES

    Inventor： NOYORI MASARU ,  OKAZAKI MOTOHIRO ,  MIYAMOTO MASASUKE

    IPC: G03F7/32 ,  B01D61/02 ,  B01D61/14 ,  C02F1/42 ,  C02F1/44 ,  C07C209/84 ,  C07C209/86 ,  C07C211/62 ,  H01L21/027

    Abstract: PROBLEM TO BE SOLVED: To provide a method for easily recovering high-purity tetraalkylammonium hydroxide and water at a low cost from a development waste liquid containing a photoresist and tetraalkylammonium ion mainly. SOLUTION: The pH of the development waste liquid containing the photoresist and tetraalkylammonium ion mainly is adjusted to 2-6 in a pH adjusting tank 1. The pH-adjusted development waste liquid is treated by a reverse osmosis membrane unit 4 to obtain the concentrated liquid (which is stored in a storage tank 5) and the permeated liquid. The concentrated liquid or the permeated liquid is treated by an ion exchanger (in a unit 7) to recover water and tetraalkylammonium hydroxide (for example, tetramethylammonium hydroxide TMAH). Insoluble alkali-soluble impurities are preferably removed by an ultrafiltration membrane before the pH-adjusted development waste liquid is concentrated by the reverse osmosis membrane.

Patent Agency Ranking