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公开(公告)号：JP2001172379A
公开(公告)日：2001-06-26
申请号：JP35854999
申请日：1999-12-17
Applicant: TORAY INDUSTRIES
Inventor： HONDA KEISUKE , AOYAMA MASATOSHI , YOSHIKAWA MASATO
IPC: C08G63/82
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for producing a polyester excellent in moldability at a higher productivity. SOLUTION: In producing a polyester by esterification or tranesterification of a dicarboxylic acid or its ester-forming derivative and a diol followed by polycondensation, a reactor at least a part of which is made of zeolite is used for the etherification step and/or the polycondensation step.
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公开(公告)号：JP2000093947A
公开(公告)日：2000-04-04
申请号：JP26507398
申请日：1998-09-18
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , OZEKI YUJI
Abstract: PROBLEM TO BE SOLVED: To make simple regeneration possible even in a home, to use unnecessary packings for gardening soil, and to enable use without producing refuse substantially by being incorporated with Na-type zeolite or a zeolitelike substance featured by the exchange capacity of Ca ions at a prescribed temperature being at least a prescribed value as Ca to a prescribed amount of zeolite or a zeolitelike substance. SOLUTION: The packings for treating water contain Na-type zeolite or a zeolitelike substance featured by the exchange capacity of CaO ions at 25 deg.C being at least 120 mg as CaO to 1 g of zeolite or a zeolitelike substance. The zeolite or the zeolitelike substance is a crystalline inorganic oxide which had a molecule-sized pore diameter. Although the composition of the zeolite is not 6 limited in particular, it is preferable to have a large ion exchange capacity. For that purpose, a crystalline metasilicate in which the metal portion is of a divalent metal is preferable in terms of an ion exchange capacity. As a kind of zeolite to be used preferably, X, Y, P-type zeolite and others are named.
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公开(公告)号：JP2000093946A
公开(公告)日：2000-04-04
申请号：JP26507298
申请日：1998-09-18
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , OZEKI YUJI
Abstract: PROBLEM TO BE SOLVED: To remove a trace amount of organic components in water which are harmful to health efficiently and to enable repeated regeneration by being incorporated with zeolite of high silica and/or pure silica material featured by the atomic ratio of silicon and a tetravalent metal to the other metals being at least a prescribed value. SOLUTION: An adsorbent for purifying water contains zeolite of high silica and/or pure silica material featured by the atomic ratio of silicon and tetravalent metal in the skeleton to the other metals being at least 25. The zeolite is a crystalline inorganic oxide which is rich in silica components and had molecule-sized pores. Although zeolite means a crystalline aluminosilicate and a crystalline metasilicate in general, here, high silica means the atomic ratio of silicon and a tetravalent metal to the other metals being at least 25. As a tetravalent metal, titanium, germanium, and others are named. An adsorbent chemical agent for purifying water, whose form is not limited in particular, is produced generally in a granular shape.
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公开(公告)号：JPH1077280A
公开(公告)日：1998-03-24
申请号：JP23347896
申请日：1996-09-03
Applicant: TORAY INDUSTRIES
Inventor： KITAGAWA TETSUJI , YOSHIKAWA MASATO , KOIKE MASAHIRO
IPC: C07D323/06 , B01J31/10 , C07B61/00
Abstract: PROBLEM TO BE SOLVED: To enable the production of trioxane from an formaldehyde aqueous solution by using a solid acid catalyst with inhibition of the corrosion of the reactor and the formation of formaldehyde polymer. SOLUTION: Trioxane is produced by bringing an aqueous solution of formaldehyde into contact with a solid acid catalyst, for example, a cationic ion exchange resin bearing sulfonic acid groups. In the production of trioxane by repeatedly bringing the aqueous solution into contact with the solid acid catalyst, it is important to lower the acidic free substance in the formaldehyde aqueous solution less than 10,000ppm, preferably 1,000ppm. For example, a part of the aqueous formaldehyde solution containing acidic free substance is taken out of the reaction system and another formaldehyde aqueous solution of a lower content of the free substance is introduced to control the concentration of the acidic free substance. Trioxane is useful as a feedstock for polyoxymethylene copolymer, an engineering plastic.
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公开(公告)号：JPH0824660A
公开(公告)日：1996-01-30
申请号：JP16365794
申请日：1994-07-15
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MINOMIYA HIDEKAZU , MATSUYOSHI HISASHI
Abstract: PURPOSE:To isomerize xylene containing ethylbenzene with a catalyst, to attain the dealkylation of ethylbenzene and the balanced isomerization of ortho-xylene and meta-xylene into para-xylene, and to improve the recovery rate of xylene. CONSTITUTION:The catalyst for isomerizing xylenes containing zeolite having a main void size of a ten-membered ring of oxygen and a silica/alumina ratio smaller than 35 and zeolite having a main void size of a ten membered ring of oxygen and a silica/alumina ratio of 35 or more, and the method for the isomerization of xylenes are provided.
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Patent Agency Ranking
公开(公告)号：JPH0388831A
公开(公告)日：1991-04-15
申请号：JP22661589
申请日：1989-08-31
Applicant: TORAY INDUSTRIES
Inventor： UEDA TOMOAKI , YOSHIDA MINORU , YOSHIKAWA MASATO
IPC: C08J5/18
Abstract: PURPOSE:To obtain ultraviolet rays-screening film suitable for packaging use or windowing use, etc., having excellent transparency and stiffness containing cerium-containing zirconia granules. CONSTITUTION:(A) Film composed of polyolefin or polyester, etc., is mixed with (B) cerium-containing zirconia granules containing 1-50mol%, preferably 2-30mol% cerium and having 0.01-5mu, preferably 0.02-2 mu obtained by hydrothermal crystallization method in which base such as ammonia water is added to mixed aqueous solution of salts of zirconium and cerium and made to neutralization and coprecipitation, then crystallized with heat in a pressure-resistant vessel to afford the aimed ultraviolet rays-screening film. Contained amount of said particles in the film is 1-50wt.%, preferably 1-20wt.% and inner haze of the film of 203mu thickness is
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公开(公告)号：JPH02137718A
公开(公告)日：1990-05-28
申请号：JP28917988
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 suitable for uses in drying, treating, heating, cooking, etc., by addition thereof to coatings, etc., by composing the material from metastable alumina as a principal ingredient. CONSTITUTION:A far infrared ray emitting material is produced by using metastable alumina as a principal ingredient. Furthermore, the metastable alumina is an intermediate in producing alpha-alumina and can be produced by heating hydrated alumina at about 200-1100 deg.C temperature. The metastable alumina includes seven kinds of kappa-, theta-, delta-, gamma-, eta-, chi- and rho-aluminas and all thereof exhibit a high far infrared ray emissivity. Among them, the delta-, gamma- and eta-aluminas showing a broad peak in an X-ray diffraction pattern are preferably used.
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公开(公告)号：JPH02135275A
公开(公告)日：1990-05-24
申请号：JP28917788
申请日：1988-11-16
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
Abstract: PURPOSE:To obtain the title material useful as a material for blending with anti-sunburn cosmetic, coating material, fiber, etc., preventing sunburn of skin, discoloration of paper, cloth, coating material, etc., comprising zirconia particles containing cerium as a main component. CONSTITUTION:The aimed material consisting essentially of zirconia particles (preferably
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公开(公告)号：JPH01176225A
公开(公告)日：1989-07-12
申请号：JP33501387
申请日：1987-12-28
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
IPC: A61K8/19 , A61K8/02 , A61K8/28 , A61K8/34 , A61K8/86 , A61Q1/00 , B01J13/00 , C01G25/00 , C09D7/12 , D01F9/10
Abstract: PURPOSE:To obtain a sol free from corrosion or odor and obviating an acid or alkali for decomposition by using a specific aliphatic alcohol or oligomer as a dispersing medium. CONSTITUTION:An aqueous solution of salt of Zr such as ZrCl is neutralized by adding a base (e.g. ammonia) to afford an aqueous suspension containing =80% to give a crystallized Zr-containing aqueous suspension. Then about 0.1wt.% of 2-4C aliphatic alcohol having >=2 OH groups or oligomer thereof (e.g. ethylene glycol) is added as a dispersing medium to the crystallized Zr- containing aqueous suspension.
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公开(公告)号：JPS6483519A
公开(公告)日：1989-03-29
申请号：JP24023287
申请日：1987-09-24
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
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 alkali substance 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 a nitrogen-containing organic basic compound or an alkaline (earth) metallic hydroxide is added to the prepared aqueous suspension containing crystallized zirconia. An aqueous suspension containing zirconium hydroxide and impurities may be used, an aqueous suspension containing crystallized zirconia is obtained similarly to the above-mentioned method, the suspension is washed, the ions of the impurities are removed and then the basic substance may be added.
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