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41.发明专利
公开(公告)号：JPH0880438A
公开(公告)日：1996-03-26
申请号：JP21739494
申请日：1994-09-12
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , IMADA YUTAKA , MATSUYOSHI HISASHI
Abstract: PURPOSE: To obtain a catalyst having high activity and high paradialkyl benzene selectivity by consisting essentially of a zeolite having the size of a main void composed of oxygen 10-membered ring and the silica/alumina ratio of below a certain value. CONSTITUTION: The zeolite having the size of the main void composed of oxygen 10-membered ring and the silica/alumina ratio of
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公开(公告)号：JPH06279436A
公开(公告)日：1994-10-04
申请号：JP7478593
申请日：1993-03-31
Applicant: TORAY INDUSTRIES
Inventor： KITAGAWA TETSUJI , YOSHIKAWA MASATO , TADA KUNIYUKI
IPC: B01J21/16 , C07B61/00 , C07D323/06
Abstract: PURPOSE:To efficiently obtain a trioxane on an industrial scale without causing side reactions and with no concern for corroding the apparatus material. CONSTITUTION:A trioxane can be obtained by bringing formaldehyde into contact with chromium- and/or aluminum-contg. montmorillonite.
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公开(公告)号：JPH02137734A
公开(公告)日：1990-05-28
申请号：JP28917688
申请日：1988-11-16
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
IPC: C01G25/02
Abstract: PURPOSE:To provide suspension having fine diameter of primary particles, not making strong secondary aggregation, having high crystallizability and excellent chemical stability by consisting main component essentially of zirconia fine particles and a saturated hydrocarbon. CONSTITUTION:This suspension of zirconia-based fine particles is a dispersion of zirconia-based fine particles comprising zirconia fine particles and a saturated hydrocarbon as main components. This dispersion, for example, is obtained by blending aqueous crystallized zirconia-based sol with the saturated hydrocarbon as a dispersion medium and, if necessary, a surfactant and dehydrating the blend under heating. The saturated hydrocarbon used in the production is a hydrocarbon non-compatible with water and when the suspension is used for cosmetic such as sun oil, liquid paraffin or squalane is preferable as the hydrocarbon. The suspension of zirconia-based fine particles has fine diameter of primary particles, high crystallizability and excellent chemical stability.
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公开(公告)号：JPH02137733A
公开(公告)日：1990-05-28
申请号：JP28917588
申请日：1988-11-16
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
IPC: C01G25/02
Abstract: PURPOSE:To provide sol useful for producing synthetic fibers and resins, having fine dispersed particle diameter of zirconia and excellent dispersibility by consisting a dispersion medium essentially of dimethyl sulfoxide. CONSTITUTION:This crystallized zirconia-based sol comprises dimethyl sulfoxide (DMSO) as a main component of dispersion medium. This sol, for example, is obtained by adding DMSO to aqueous crystallized zirconia-based sol and dehydrating under heating. The sol has fine dispersed particle diameter of zirconia particles and excellent dispersibility and dispersion stability so that the sol is useful as a raw material for producing fibers and resins and can effectively eliminate deterioration of strength, etc., especially in production of acrylic fibers, etc. Since DMSO is much used in production of various resins and acrylic fibers, the sol can be readily applied to resins and fibers.
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公开(公告)号：JPH02137730A
公开(公告)日：1990-05-28
申请号：JP28917288
申请日：1988-11-16
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
IPC: C01G25/02
Abstract: PURPOSE:To obtain the title sol which has never been obtained conventionally by heating an aqueous suspension containing zirconium hydroxide in an acidic atmosphere to give an aqueous suspension containing crystallized zirconia, adding a water-soluble organic solvent to the aqueous suspension and dehydrating the zirconia sol. CONSTITUTION:An aqueous suspension containing zirconium hydroxide is maintained at >=80 deg.C in an acidic atmosphere preferably at pH
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Patent Agency Ranking
公开(公告)号：JPH02137719A
公开(公告)日：1990-05-28
申请号：JP28918088
申请日：1988-11-16
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , INOUE TAKEHISA
Abstract: PURPOSE:To provide an inexpensive far infrared ray emitting material, excellent in far infrared ray emissivity and suitably for uses in drying, treating, heating, cooking, etc., by addition thereof to coatings, etc., by composing the material from a boehmite gel as a principal ingredient. CONSTITUTION:A far infrared ray emitting material is produced by using a boehmite gel as a principal ingredient. Furthermore, the boehmite gel can be produced by a method for hydrolyzing an alkoxide of aluminum and aging amorphous alumina gel in an aqueous solution at >=25 deg.C, etc. The boehmite gel has a higher moisture content than that in boehmite of Al2O3.H2O, has a composition close to Al2O3.1.5H2O to Al2O3.2H2O and called psuedo-boehmite. The boehmite gel can be mixed with coatings, etc., and applied to a fabric, cotton, dryer, etc., to form a far infrared ray emitting film.
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公开(公告)号：JPS6483520A
公开(公告)日：1989-03-29
申请号：JP24023387
申请日：1987-09-24
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
IPC: C01G25/02
Abstract: PURPOSE:To enable mass production of the titled sol, by heating and maintaining an aqueous suspension containing zirconium hydroxide at a specific temperature and adding an acid to the prepared aqueous suspension containing crystallized zirconium having a specific degree of crystallization. CONSTITUTION:An aqueous suspension containing zirconium hydroxide is maintained in a heated state at >=80 deg.C until degree of crystallization of formed zirconia reaches >=80% to give an aqueous suspension containing crystallized zirconium. Stable sol can be produced by obtaining the zirconia having >=80% degree of crystallization. Then an acid is added to the prepared aqueous suspension containing crystallized zirconia. By this method, zirconia sol having
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公开(公告)号：JPS6476919A
公开(公告)日：1989-03-23
申请号：JP23334087
申请日：1987-09-17
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
IPC: C01G25/02
Abstract: PURPOSE:To obtain the titled stable sol having fine particle size and free from secondary coagulation tendency, with simple process, by heating an aqueous suspension containing zirconium hydroxide, keeping the hot state in an acidic atmosphere having a specific pH range, evaporating and drying the obtained aqueous suspension containing crystallized ZrO2 and adding the dried product to an aqueous solvent. CONSTITUTION:An aqueous solution of a Zr salt (e.g., ZrCl4) and, as necessary, salt of other element (e.g., YCl3) is neutralized and coprecipitated with a base to obtain an aqueous suspension containing zirconium hydroxide and, as necessary, hydroxide of other element such as Y. The aqueous dispersion is adjusted to a concentration of =80 deg.C, adjusted to an acidic state of pH1-5.5 e.g. by the addition of an acid and maintained in hot state of e.g. 150 deg.C for about 12hr until crystallized substance is sufficiently produced. The obtained aqueous dispersion containing crystallized ZrO2 is evacuated to dryness at
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公开(公告)号：JP2003238134A
公开(公告)日：2003-08-27
申请号：JP2002352793
申请日：2002-12-04
Applicant: UNIV NAGOYA , TORAY INDUSTRIES
Inventor： SHINOHARA HISANORI , OKAMOTO ATSUSHI , YOSHIKAWA MASATO , OZEKI YUJI
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a hollow nanofiber whose main component is carbon and which enables the recycling of zeolite used as a support of a catalyst metal. SOLUTION: The hollow nanofiber whose main component is carbon is produced by bringing the catalyst composed of a zeolite membrane on the surface of which a metal is supported into contact with a carbon containing compound at 500-1,200°C. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002249313A
公开(公告)日：2002-09-06
申请号：JP2001294868
申请日：2001-09-26
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , OZEKI YUJI
Abstract: PROBLEM TO BE SOLVED: To coat a substrate with zeolite crystal thinly and densely. SOLUTION: A substrate is subjected to adhesion, immersion or coating with (1) an acid, (2) an ester which generates a carboxylic ion by dissociation, and (3) a carboxylic metal salt which generates a carboxylic ion by dissociation. Then the substrate is made to contact with a slurry, a sol or a solution each containing the zeolite crystal. A zeolite precursor is made to contact with the substrate thus coated and the zeolite precursor is crystallized, so that a zeolite film can be manufactured.
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