Patents Assigned to Asahi Kasei Chemicals Corporation
  • Deformed porous hollow fiber membrane, production method of deformed porous hollow fiber membrane, and module, filtration device, and water treatment method in which deformed porous hollow fiber membrane is used
    Patent number: 9511529
    Abstract: A porous hollow fiber membrane that is suitable for treatment of liquid containing an inorganic substance and/or an organic substance, is obtained at a low cost performance, and has high water permeability performance, fretting resistance, and drying resistance. A deformed porous hollow fiber membrane according to the present invention is composed of a thermoplastic resin and includes a continuous asperity provided on the periphery in the longitudinal direction of the membrane, in which the periphery of the hollow fiber membrane in the circumferential direction includes continuous projected and depressed parts.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: December 6, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Hirokazu Fujimura, Masatoshi Hashino, Noboru Kubota, Hideto Matsuyama
  • Method for producing glucaric acid
    Patent number: 9506091
    Abstract: The disclosure provides a method for creating a transformant having significantly improved glucaric acid-producing capability and a method for efficiently producing glucaric acid using the transformant.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: November 29, 2016
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazunobu Konishi, Shinichi Imazu
  • Method for producing scyllo-inositol
    Patent number: 9505795
    Abstract: The disclosure provides a method of producing a scyllo-inositol or a new scyllo-inositol derivative in a one-step process, from ubiquitous and inexpensive raw materials. Also provided is a scyllo-inositol derivative bonded to saccharides such as glucose and similar.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: November 29, 2016
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazunobu Konishi, Shinichi Imazu
  • APPARATUS FOR PRODUCING MIXED SOLUTION AND METHOD FOR PREPARING MIXED SOLUTION
    Publication number: 20160340295
    Abstract: An apparatus for producing a mixed solution, comprising a mixing vessel for preparing an aqueous mixed solution containing a dicarboxylic acid and an Nb compound and a filter for the aqueous mixed solution connected to the mixing vessel via a pipe, the mixing vessel being anticorrosive and equipped with a stirring unit, a heating unit and a cooling unit for the aqueous mixed solution, wherein the aqueous mixed solution prepared in the mixing vessel is fed to the filter via the pipe and filtered in the filter under increased pressure.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Yusuke ISHII, Takaaki KATO
  • Method of estimating stable state membrane filtration flux
    Patent number: 9492791
    Abstract: It is an object of the present invention to provide a method of estimating the maximum value of the flux during long-term stable operation including cleaning of a membrane filtration plant based on measured data of a membrane filtration characteristic during initial membrane filtration.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: November 15, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Takashi Ogawa, Yoshihiko Mori
  • Modified butadiene-based polymer composition
    Patent number: 9493629
    Abstract: An object of the present invention is to improve, in the raw material rubber compound particularly using a silica-based filler, which is used for tire tread, the balance between the rolling resistance and the skid resistance on a wet road surface and at the same time, improve the wear resistance is enhanced. The present invention provides an oil-extended polymer composition comprising 100 parts by weight of (A) a polymer having a number average molecular weight Mn of 500,000 to 700,000 and a content of a functional group-containing polymer component to be adsorbed to silica of 50 wt % or more, and from 20 to 60 parts by weight of (B) an extender oil.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: November 15, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Haruo Yamada, Takaaki Matsuda, Yuichi Kitagawa
  • Crosslinkable and foamable composition, crosslinked foam, and shoe midsole comprising the same
    Patent number: 9493623
    Abstract: The present invention provides a crosslinked foam having an excellent balance of various physical properties in terms of lightness, flexibility, permanent compression set, tear strength, impact resilience, and molding stability; a shoe midsole; and a crosslinkable and foamable composition that provides the crosslinked foam and shoe midsole. A crosslinkable and foamable composition comprising (A) an ethylene-based copolymer; (B) a copolymer comprising a vinyl aromatic monomer unit and an unsaturated bond-containing a conjugated diene monomer unit; (C) an organic peroxide; and (D) a foaming agent; a mass ratio of the component (A) to the component (B), (A/B), being from 97/3 to 50/50; and the component (B) comprising 5 mass % or more and 80 mass % or less of the vinyl aromatic monomer unit, and 5 mass % or more and 55 mass % or less of the conjugated diene monomer unit.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: November 15, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Daisuke Shimizu, Yoshifumi Araki, Katsumi Suzuki, Yasuhiro Kusanose, Mika Horiuchi
  • Polyethylene powder
    Patent number: 9469701
    Abstract: The present invention provides a polyolefin powder including a homopolymer of ethylene or a copolymer of ethylene and an ?-olefin having 3 to 15 carbon atoms.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 18, 2016
    Assignee: Asahi Kasei Chemicals Corporation
    Inventor: Kotaro Kuwata
  • Method for producing unsaturated nitrile
    Patent number: 9464039
    Abstract: A method for producing an unsaturated nitrile by subjecting propane to a vapor-phase catalytic ammoxidation reaction using a fluidized bed reactor in the presence of a composite oxide catalyst containing Mo, V, and Nb, the method comprising the step of: adding a tungsten compound into the fluidized bed reactor to adjust a molar ratio (W/Mo ratio) of tungsten contained in a tungsten compound to molybdenum contained in the composite oxide catalyst that exist within the fluidized bed reactor so that the molar ratio is in the range of 0.0001 to 0.1.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: October 11, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Sho Tamura, Sadao Shoji
  • Structure for improving strength of tabular portion and substantially rectangular parallelepiped member
    Patent number: 9461580
    Abstract: A polygon in a tabular portion includes first and second axes of symmetry substantially orthogonal to each other. A top surface of the tabular portion has a swelling portion with an outline that is line-symmetric with respect to the first and second axes of symmetry. In a lateral half portion of the outline, a short-side side crest portion that is convex toward the polygonal outline in the direction of the first axis of symmetry, concave corner-side trough portions connected to each end of the short-side side crest portion and long-side side crest portions that are connected to each corner-side trough portion and convex toward the polygonal outline are formed. On one of a top surface and an undersurface of the swelling portion, a pair of lateral ribs or a pair of longitudinal ribs that spreads toward the polygonal outline and transversely crosses the swelling portion is formed.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: October 4, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Hideyuki Inaba, Cuong Vu Manh
  • MOLDED ARTICLE AND PRODUCTION METHOD THEREOF
    Publication number: 20160271898
    Abstract: A molded article for packaging of the present invention is obtained by molding a laminated film having a barrier layer, and including an opening with an opening area A, and an inner surface with a surface area B constituting a space for housing a content, a ratio B/A of the surface area B of the inner surface to the opening area A of the opening is 1.2 or more to 7 or less, and in a case where a maximum thickness of the molded article is 300 ?m or more, a ratio TMIN/TMAX of a minimum thickness TMIN to a maximum thickness TMAX of the barrier layer is 0.2 or more, and in a case where the maximum thickness of the molded article is less than 300 ?m, a ratio TMIN/TMAX of a minimum thickness TMIN to a maximum thickness TMAX of the barrier layer is 0.12 or more.
    Type: Application
    Filed: November 19, 2013
    Publication date: September 22, 2016
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tadayoshi MATSUMURA, Tohru OKUDA
  • Composite particles which contain both cellulose and inorganic compound
    Patent number: 9446137
    Abstract: Provided are composite particles which exhibit excellent fluidity and high liquid retentivity and which exhibit high fluidity even in a liquid-holding state. Also provided are composite particles which permit direct compressing in an open feed manner and which suffer from little compressing trouble and exhibit high shapability. When shaped together with an active ingredient, the composite particles provide shaped bodies which have uniform weight, uniform active ingredient content, and high hardness and which suffer from less galling.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: September 20, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Takumi Magome, Kazuhiro Obae
  • METHACRYLIC RESIN COMPOSITION, METHOD FOR PRODUCING THE SAME, AND MOLDED ARTICLE
    Publication number: 20160264771
    Abstract: It is intended to obtain a methacrylic resin composition that has high transparency, is excellent in fluidity and heat resistance, and is low variable in impact resistance.
    Type: Application
    Filed: March 8, 2016
    Publication date: September 15, 2016
    Applicant: Asahi Kasei Chemicals Corporation
    Inventor: Masahiro WATANABE
  • Method for purification of antibody using porous membrane having amino group and alkyl group both bound to graft chain immobilized on porous substrate
    Patent number: 9441011
    Abstract: A method is disclosed for purifying an antibody monomer, comprising providing a porous membrane comprising a hydrophobic porous substrate, a hydrophilic molecular chain of a different material from that of the porous substrate, immobilized on the surface of pores of the porous substrate, and a side chain of the molecular chain, containing a nitrogen atom to which one to three alkyl groups each having two or three carbon atoms are bonded; passing an antibody solution containing antibody aggregates of dimers or higher-order multimers through the porous membrane to adsorb the antibody aggregates to the porous membrane; and recovering the purified antibody monomer in the passed solution.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: September 13, 2016
    Assignees: ASAHI KASEI CHEMICALS CORPORATION, ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Naoyuki Shinohara, Takashi Ishihara, Hironobu Shirataki, Yoshiro Yokoyama
  • Coating film, and granules and tablets each utilizing same
    Patent number: 9439865
    Abstract: A coating film comprising ethyl cellulose as a component A and an (ethyl acrylate)-(methyl methacrylate) copolymer or a plasticized vinyl acetate polymer as a component B, and having a tensile elongation of 150% or more and a tensile strength of 9 N or more.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: September 13, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Naoya Yoshida, Kazuhiro Obae
  • Oxide catalyst, process for producing oxide catalyst, process for producing unsaturated acid, and process for producing unsaturated nitrile
    Patent number: 9427727
    Abstract: Disclosed is a process for producing an oxide catalyst for use in the gas-phase catalytic oxidation reaction or the like of propane or the like, the process comprising the steps of: (I) obtaining a preparation containing compounds of Mo, V, Nb, and Sb or Te at the predetermined atomic ratios; (II) drying the preparation to obtain a dry powder; and (III) calcining the dry powder, wherein the step (III) comprises the step of calcining the dry powder in the presence of a compound containing W in the form of a solid to obtain a pre-stage calcined powder or a mainly calcined powder, or the step of calcining the dry powder and calcining the obtained pre-stage calcined powder in the presence of the solid to obtain a mainly calcined powder, the solid satisfies the predetermined conditions, and the oxide catalyst comprises a catalytic component having the predetermined composition.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: August 30, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Eri Tateno, Takeo Ichihara, Takaaki Kato
  • Method for purifying protein
    Patent number: 9428544
    Abstract: It is an object of the present invention to provide a method for eluting an adsorbed protein that suppresses a decrease in protein adsorption ability, in a method for purifying a protein using a protein-adsorbing porous membrane. The present invention provides a method for purifying a protein, comprising an adsorption step and an elution step, wherein in the elution step, at least one eluent is passed in the opposite direction with respect to the direction of the passage of a stock solution containing an adsorption target protein, in the adsorption step.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 30, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yuta Sato, Naoyuki Shinohara, Hironobu Shirataki
  • Alkyl Tin Compound
    Publication number: 20160228863
    Abstract: An alkyl tin compound having an alkyl group bonded to a tin atom, wherein the alkyl group is a branched alkyl or cyclic group-substituted alkyl group, the branched alkyl group being an alkyl group branched at at least one carbon atom of the first to third carbon atoms counting from the tin atom, and the cyclic group-substituted alkyl group being an alkyl group having a cyclic group bonded at at least one carbon atom of the first to third carbon atoms counting from the tin atom.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 11, 2016
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Nobuhisa Miyake, Masaaki Shinohata, Budianto Nishiyama, Atsushi Okubo
  • Polyethylene Powder, Microporous Membrane, and Fiber
    Publication number: 20160233473
    Abstract: It is intended to provide a polyethylene powder which can offer a fiber excellent in resistance to end breakage, dimensional stability, and acid resistance and/or a microporous membrane excellent in dimensional stability and acid resistance, and a microporous membrane and a fiber which are obtained by forming the polyethylene powder. The present invention provides a polyethylene powder comprising: 0.5 ppm or higher and 3,000 ppm or lower of aluminum hydroxide having an average particle size smaller than 50 ?m; and 0.5 ppm or higher and 12 ppm or lower of a magnesium element, wherein the polyethylene has a viscosity-average molecular weight of 100,000 or larger.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 11, 2016
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Hiroshi Kamo, Akio Fujiwara
  • Composition and Polymer
    Publication number: 20160222168
    Abstract: Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.
    Type: Application
    Filed: March 25, 2016
    Publication date: August 4, 2016
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Akitake Nakamura, Takeshi Endo