Patents Assigned to Asahi Kasei Chemicals Corporation
  • POLYAMIDE, POLYAMIDE COMPOSITION, AND MOLDED ARTICLE
    Publication number: 20150175744
    Abstract: A polyamide comprising a unit containing at least one (a) alicyclic dicarboxylic acid and a unit containing a (b) diamine having 8 or more carbon atoms, wherein the polyamide satisfies the following conditions (1) and (2): (1) a sulfuric acid relative viscosity ?r at 25° C. is 2.3 or more; and (2) Mw (weight average molecular weight)/Mn (number average molecular weight) is 4.0 or less.
    Type: Application
    Filed: July 9, 2013
    Publication date: June 25, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Shinji Ieda, Koichi Nagase, Yu Nitto
  • BLOCK COPOLYMER AND PROCESS FOR PRODUCTION OF HEAT SHRINKABLE FILM
    Publication number: 20150175758
    Abstract: The present invention provides a production process of a heat shrinkable film which is transparent, excellent in the balance of physical properties such as rigidity, elongation and shrink properties in both MD and TD, especially has a uniform film thickness and good stability in extrusion molding film while utilizing an inflation method; a block copolymer or hydrogenated product thereof, or a composition composed thereof excellent in tensile properties, optical properties, hardness, stretch properties, molding processability, shrink properties and solvent resistance and therefore suited for extrusion, injection molding and foams. The production process of a heat shrinkable film has a first inflation step of forming a tube having a thickness of from 0.05 to 0.5 mm by using a block copolymer having a vinyl aromatic hydrocarbon content of from 65 to 95 wt. % and a conjugated diene content of from 5 to 35 wt.
    Type: Application
    Filed: January 26, 2015
    Publication date: June 25, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Susumu HOSHI, Ryoko FUKUOKA, Yasutaka NAKAMURA
  • BLOCK COPOLYMER COMPOSITION FOR VISCOUS ADHESIVE, AND ADHESIVE COMPOSITION
    Publication number: 20150175855
    Abstract: It is an object to provide a block copolymer composition for a viscous adhesive, which will be a viscous adhesive composition excellent in balance of the adhesive properties such as tack strength and tackiness, having a low melt viscosity, and excellent solubility, coating properties, ejection stability, and surface skin quality. The block copolymer composition for a viscous adhesive having: a component (a) in an amount of 50 mass % or more and 90 mass % or less; and a component (b) in an amount of 10 mass % or more and 50 mass % or less; a content of the vinyl aromatic monomer unit being 25 to 50 mass %; a viscosity of the 15 mass % toluene solution being 10 to 40 mPa·s; and a number average molecular weight ratio of the component (b) to the component (a) being 2.0 to 4.0.
    Type: Application
    Filed: July 18, 2013
    Publication date: June 25, 2015
    Applicants: Asahi Kasei Chemicals Corporation, Japan Elastomer Co., Ltd.
    Inventors: Shigeo Nakajima, Takahiro Hisasue, Kenji Ebara, Yukinori Nakamichi
  • COMPOSITE PARTICLES WHICH CONTAIN BOTH CELLULOSE AND INORGANIC COMPOUND
    Publication number: 20150174255
    Abstract: Provided are composite particles which exhibit excellent fluidity and high liquid retentivity and which exhibit high fluidity even in a liquid-holding sate. 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: Application
    Filed: January 7, 2015
    Publication date: June 25, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Takumi MAGOME, Kazuhiro OBAE
  • Isocyanate production process using composition containing carbamic acid ester and aromatic hydroxy compound, and composition for transfer and storage of carbamic acid ester
    Patent number: 9056819
    Abstract: An object of the present invention is to provide an isocyanate production process, which is free of the various problems found in the prior art, and which uses a composition containing a carbamic acid ester and an aromatic hydroxy compound when producing isocyanate without using phosgene, as well as a carbamic acid ester composition for transferring or storing carbamic acid ester. The present invention discloses an isocyanate production process including specific steps and using a composition containing a carbamic acid ester and an aromatic hydroxy compound, as well as a composition for transfer or storage of carbamic acid ester comprising the carbamic acid ester and the specific aromatic hydroxy compound.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 16, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Method for preparing ruthenium catalyst for producing cycloolefin and method and apparatus for producing cycloolefin
    Patent number: 9056309
    Abstract: A method for preparing a ruthenium catalyst, including a step of reducing a ruthenium catalyst precursor by holding the ruthenium catalyst precursor in an aqueous solution containing a metal salt at a temperature within the range of more than 180° C. and 220° C. or less and a hydrogen partial pressure within the range of 0.6 MPa or more and 5 MPa or less. A method for producing a cycloolefin, including a step of preparing a ruthenium catalyst by the method including a step of reducing a ruthenium catalyst precursor in an aqueous solution containing a metal salt by holding the ruthenium catalyst precursor at a temperature within the range of more than 180° C. and 220° C. or less and a hydrogen partial pressure within the range of 0.6 MPa or more and 5 MPa or less, and a step of partially hydrogenating a monocyclic aromatic hydrocarbon by use of the ruthenium catalyst obtained.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: June 16, 2015
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Mitsuo Konishi, Masakazu Sato
  • Process for preparing episulfide compounds
    Patent number: 9051293
    Abstract: Provided is a method for producing an episulfide compound, the method including a step of thiating epoxy groups of (B) an epoxy compound by a reaction with (C) a thiating agent in the presence of (A) a polyhydric hydroxyl compound having two or more hydroxyl groups.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: June 9, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Akitake Nakamura, Takeshi Endo
  • METHOD FOR CONVERTING OLEFIN OR ALCOHOL AND METHOD FOR PRODUCING PROPYLENE OR AROMATIC COMPOUND
    Publication number: 20150152024
    Abstract: A method for converting an olefin or an alcohol has a pretreatment step of obtaining a conductive catalyst by a pretreatment for suppressing electrostatic charging of a non-conductive catalyst and a step of converting an olefin or an alcohol by a fluidized bed reaction using the conductive catalyst.
    Type: Application
    Filed: August 9, 2013
    Publication date: June 4, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Takehiro Iitsuka, Yoshikazu Takamatsu
  • CELLULOSE POWDER
    Publication number: 20150150804
    Abstract: This cellulose powder has: an average degree of polymerization of 100 to 350; a weight average particle size of over 30 ?m, but less than 250 gm; an apparent specific volume of 2 to less than 15 cm3/g; and a particle size distribution sharpness of 1.5 to 2.9.
    Type: Application
    Filed: May 30, 2013
    Publication date: June 4, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kazuhiro Obae, Masayuki Kakizawa, Mitsuo Yamashita, Shinji Matsui
  • Controlled release solid preparation
    Patent number: 9029427
    Abstract: Disclosed is a solid preparation which comprises at least one active ingredient and at least one dissolution-controlling base substance and can be formed by compression molding, wherein the dissolution-controlling base substance contains 5.0 to 99.9% by weight (inclusive) of a modified starch having a moisture retaining capacity of 400% or more and a gel indentation load of 200 g or more, containing a water-soluble ingredient in an amount of 40 to 95% by weight, having particles passing through a 75 ?m-mesh sieve in the proportion of 90% by weight or more and particles passing through a 32 ?m-mesh sieve in the proportion of 20% by weight or more, and having an average particle diameter of not smaller than 20 ?m and smaller than 50 ?m.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: May 12, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Endo, Kazuhiro Obae, Ichirou Ibuki, Yoshihito Yaginuma
  • METHOD FOR PRODUCTION OF CONJUGATED DIOLEFIN
    Publication number: 20150126788
    Abstract: An object of the present invention is to provide a method for production of a high purity conjugated diolefin. The method for production of a conjugated diolefin of the present invention comprises steps of supplying a source gas containing a C4 or higher monoolefin and an oxygen-containing gas into a reactor, bringing a catalyst into contact with the gas mixture, compressing a gas containing a conjugated diolefin produced by an oxidative dehydrogenation reaction to obtain a liquefied gas and rinsing the liquefied gas with water.
    Type: Application
    Filed: March 13, 2012
    Publication date: May 7, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kazuhiro Takagaki, Hiroyuki Yano
  • Polyamide and polyamide composition
    Patent number: 9023975
    Abstract: [Problem to be Solved] To provide a polyamide having a high melting point, which has excellent strength, toughness, and stability under heating. [Solution] This polyamide is obtained by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end amount of 30 to 60? equivalents/g.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: May 5, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yu Nitto, Yasukazu Shikano, Shinji Ieda, Kazunori Terada, Masaaki Aramaki
  • Metal pigment composition
    Patent number: 9017475
    Abstract: An object of the present invention is to provide a metal pigment composition having the characteristics that aging stability is excellent, reductions of brightness, masking and flip flop appearance are little, and storage stability is excellent. The present invention is directed to a metal pigment composition containing a metal pigment treated with at least one of organic molybdenum compounds, or a metal pigment composition containing a metal pigment treated with at least one of organic molybdenum compounds, and at least one agent selected from the groups consisting of an anti-oxidizing agent, an anti-reducing agent and a photostabilizer.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: April 28, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazuko Nakajima, Shigeki Katsuta
  • CELLULOSE POWDER
    Publication number: 20150110900
    Abstract: This cellulose powder has: an average degree of polymerization of 100 to 350; a weight average particle size of over 30 gm, but less than 250 ?m; an apparent specific volume of 2 to less than 15 cm3/g; and an organic carbon content from residual impurities, which is defined by the total organic carbon content (%) during 1% NaOH extraction to the total organic carbon content (%) during pure water extraction, of over 0.07 to 0.3%.
    Type: Application
    Filed: May 30, 2013
    Publication date: April 23, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Kazuhiro Obae, Masayuki Kakizawa, Mitsuo Yamashita
  • Method for Producing Polymer
    Publication number: 20150112027
    Abstract: The present invention is related to a method for producing a polymer to efficiently remove metal residues of at least lithium and/or titanium from a polymer solution comprising the at least lithium and/or titanium to thereby obtain a refined polymer solution having little metal residue.
    Type: Application
    Filed: April 24, 2013
    Publication date: April 23, 2015
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Daisuke Shimizu, Kenta Shibuya
  • COATING FILM, AND GRANULES AND TABLETS EACH UTILIZING SAME
    Publication number: 20150104513
    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: Application
    Filed: December 5, 2014
    Publication date: April 16, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Naoya YOSHIDA, Kazuhiro OBAE
  • Method for producing silica-supported catalyst, and method for producing unsaturated carboxylic acid or unsaturated nitrile
    Patent number: 9000207
    Abstract: A method for producing a silica-supported catalyst comprising Mo, V. Nb, and a component X (Sb and/or Te) to be used in a vapor phase catalytic oxidation or ammoxidation of proprane, comprising the steps of: (I) preparing a raw material mixture solution by mixing Mo, V, Nb, component X, a silica sol, and water; (II) obtaining a dry powder by drying the raw material mixture solution; and (III) obtaining a silica-supported catalyst by calcining the dry powder, wherein the silica sol contains 10 to 270 wt ppm of nitrate ions based on SiO2.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: April 7, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yusuke Ishii, Takaaki Kato
  • Cover tape, method for manufacturing cover tape, and electronic part package
    Patent number: 8999502
    Abstract: A cover tape having a temperature at which a heat shrinkage rate in at least one of a machine direction and a transverse direction perpendicular to the machine direction is 5% or more between 80° C. to 200° C.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: April 7, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masayuki Yoshino, Toshihiro Koyano, Daisuke Masaki, Yutaka Matsuki
  • Zeolite-containing catalyst and method for producing the same, and method for producing propylene
    Patent number: 8993469
    Abstract: The present invention provides a zeolite-containing catalyst having excellent shape, fluidity and mechanical strength as a catalyst for a fluidized bed reaction. The present invention provides a zeolite-containing catalyst which is a particulate catalyst containing zeolite and silica, wherein the catalyst has an average particle diameter of 20 to 300 ?m and the ratio of the void area in the cross-section of the particle is 30% or less relative to the cross-section area of the particle.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: March 31, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kenji Akagishi, Hiroyuki Yano, Ryusuke Miyazaki
  • Glass-fiber reinforced thermoplastic resin composition and molded article thereof
    Patent number: 8993670
    Abstract: The present invention provides a glass fiber-reinforced thermoplastic resin composition in which a particular relationship is satisfied between the glass fiber content (W (parts by weight)) and the melt viscosity (?) of the thermoplastic resin composition at molding temperature as determined at a shear rate of 1,000 sec?1. According to the present invention, there can be obtained a glass fiber-reinforced thermoplastic resin having increased strength and rigidity and excellent in practical characteristics such as impact resistance and antifreeze liquid resistance. In addition, molded articles obtained by injection-molding the composition are available as components having reduced anisotropies of mechanical characteristics and mold shrinkage factor.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: March 31, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Osamu Fujii, Koji Sarukawa