Patents Assigned to Asahi Kasei Chemicals Corporation
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Patent number: 8865811Abstract: The polyphenylene ether according to the present invention includes 5 to 20% by mass of a component having a molecular weight of 50,000 or more and 12 to 30% by mass of a component having a molecular weight of 8,000 or less. The resin composition according to the present invention includes the polyphenylene ether (a) and a hydrogenated block copolymer (b) prepared by hydrogenating a block copolymer including at least two polymer blocks A having a vinyl aromatic compound and at least one polymer block B having a conjugated diene compound, wherein the number average molecular weight (Mnb) of the hydrogenated block copolymer is 100,000 or less, and the number average molecular weight (MnbA) of at least one polymer block of the polymer blocks A is 8,000 or more.Type: GrantFiled: October 13, 2010Date of Patent: October 21, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Shunichiro I, Yoshikuni Akiyama, Hiroshi Kamo, Yoshifumi Araki, Toru Yamaguchi, Tomohiro Kondo
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Patent number: 8865804Abstract: The present invention provides a resin composition that simultaneously (1) supports high productivities, (2) is resistant to bleed out by the flame retardant present in the composition, (3) is resistant to migration of its components to another resin, (4) exhibits a high flame retardancy, and (5) exhibits high flexibility. The resin composition includes components (A) a polyphenylene ether, (B) a hydrogenated copolymer, (C) a styrene resin and/or olefin resin, and (D) a metal phosphinate, wherein the component (B) includes (B1) a polymer block principally comprising an aromatic vinyl monomer unit, and (B2) a hydrogenated copolymer block principally comprising an aromatic vinyl monomer unit and a conjugated diene monomer unit, and a content of the aromatic vinyl monomer unit in the (B2) is 20 to 95% by weight, and a content of the aromatic vinyl monomer unit in the (B) is 35 to 80% by weight.Type: GrantFiled: September 23, 2011Date of Patent: October 21, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Yoshifumi Araki, Takashi Sato, Takahiro Hisasue
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Patent number: 8865242Abstract: Disclosed is a cellulose composite which comprises cellulose and a hydrophilic gum, the cellulose composite giving a 1-mass % aqueous dispersion thereof which has a storage modulus (G?) of 0.06 Pa or more when the pH thereof is 4.Type: GrantFiled: March 30, 2011Date of Patent: October 21, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Haruko Obata, Naoaki Yamasaki
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Publication number: 20140295162Abstract: The present invention relates to a metal collecting material formed of an organic polymer fiber base material into which a functional group having a metal adsorbing function is introduced, in which the metal collecting material has a nonwoven fabric form, an opening diameter of 10 to 300 ?m, an aperture ratio of 10 to 50%, a thickness of 10 to 500 ?m, and a weight per area of 5 to 25 g/m2, and a fiber diameter of the organic polymer fiber is 5 to 50 ?m.Type: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicants: ASAHI KASEI CHEMICALS CORPORATION, JAPAN ATOMIC ENERGY AGENCYInventors: Taro Suzuki, Noriaki Seko, Masao Tamada, Seiichi Saiki, Naohiko Inatomi
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Publication number: 20140263527Abstract: An object of the present invention is to allow a flap of a roll storage case to be easily opened and closed by means of a flap cover and to prevent the flap cover from slipping off from the flap of the roll storage case even when the flap is opened and closed many times. A flap cover includes an upper plate covering an upper surface portion of a flap, a front plate covering a front surface portion of the flap, and a pair of side plates covering opposite side surface portions of the flap. Each of the side plates includes a locking portion which projects inward from the side plate and which is able to be locked on a lower end surface of the side surface portion of the flap.Type: ApplicationFiled: September 14, 2011Publication date: September 18, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Takafumi Mukohara, Takashi Nakao
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Publication number: 20140256981Abstract: A purified cyclohexanol of the present invention has a methylcyclopentanol concentration of 10 to 1000 ppm by weight and a cyclohexylcyclohexene isomer concentration of 15 to 500 ppm by weight. A method for producing cyclohexanol of the present invention comprises: Step 1 of producing a solution (I) containing cyclohexanol, methylcyclopentanol, and water by a hydration reaction of cyclohexene; Step 2 of separating the solution (I) into a water phase and an oil phase; Step 3 of obtaining a partially purified cyclohexanol containing methylcyclopentanol from the oil phase; and Step 4 of separating and removing methylcyclopentanol in the partially purified cyclohexanol so as to obtain a purified cyclohexanol having a methylcyclopentanol concentration of 10 to 1000 ppm by weight and a cyclohexylcyclohexene isomer concentration of 15 to 500 ppm by weight.Type: ApplicationFiled: June 28, 2012Publication date: September 11, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Naoki Narisawa, Katsutoshi Tanaka
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Publication number: 20140256977Abstract: To produce a silica-supported catalyst having an excellent yield of a target product and excellent catalyst attrition resistance. 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 propane, 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: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Yusuke ISHII, Takaaki KATO
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Publication number: 20140255753Abstract: Disclosed is a polyolefin microporous membrane including a multilayer film having two or more layers. In this polyolefin microporous membrane, at least one surface layer has a thickness of not less than 0.2 ?m but not more than 5 ?m and contains inorganic particles, while at least one layer contains a polyethylene and has an air permeability of not less than 50 second/100 cc but not more than 1000 second/100 cc and a puncture strength of not less than 3.0 N/20 ?m.Type: ApplicationFiled: May 16, 2014Publication date: September 11, 2014Applicant: Asahi Kasei Chemicals CorporationInventors: Masahiro OHASHI, Hiroshi SOGO
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Patent number: 8829104Abstract: Disclosed is a styrene-based resin composition that comprises 5-20 parts by mass of (D) a fire retardant per 100 parts by mass of a resin composition (1) that comprises 30-51 mass % of (A) a graft copolymer obtained by graft polymerization of a diene rubber polymer with an aromatic vinyl monomer and an unsaturated nitrile monomer, 10-55 mass % of (B) a copolymer comprising two or more monomers selected from among aromatic vinyl monomers, unsaturated nitrile monomers and unsaturated carboxylic acid alkyl ester monomers, and 15 to 39% by mass of a copolymer (C) comprising one kind of unsaturated carboxylic acid alkyl ester monomers, or two or more unsaturated carboxylic acid alkyl ester monomers, ((A)+(B)+(C)=100 mass %), wherein the diene rubber polymer constitutes 15-25 mass % of the resin composition (1).Type: GrantFiled: March 18, 2011Date of Patent: September 9, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Tomoyuki Fujisawa, Mihoko Yamamoto
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Publication number: 20140248497Abstract: The invention provides a polyurethane resin composition for electrical insulation that has excellent compatibility between an isocyanate component and a polyol component, and that exhibits excellent heat resistance, moisture resistance, and insulation properties. The polyurethane resin composition for electrical insulation comprises (1) Part A comprising a polyisocyanate component obtained from at least one member selected from the group consisting of aliphatic diisocyanates and alicyclic diisocyanates, and containing one or more isocyanurate groups and one or more allophanate groups; and (2) Part B comprising a polyol component, wherein the polyisocyanate component has a molar ratio, (a)/(b), of isocyanurate groups (a) to allophanate groups (b) of 85/15 to 15/85.Type: ApplicationFiled: September 27, 2012Publication date: September 4, 2014Applicants: ASAHI KASEI CHEMICALS CORPORATION, SANYU REC CO., LTD.Inventors: Yoshimichi Takei, Akira Morisaki, Takashi Fukuchi
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Patent number: 8822614Abstract: The present invention provides an acrylic thermoplastic resin containing 50 to 95% by mass of a repeating unit (X) derived from a methacrylate monomer represented by the following formula (1), 0.1 to 20% by mass of a repeating unit (Y1) derived from an N-substituted maleimide monomer (a) represented by the following formula (2), and 0.1 to 49.9% by mass of a repeating unit (Y2) derived from an N-substituted maleimide monomer (b) represented by the following formula (3), regarding the total amount of the repeating unit (X), the repeating unit (Y1), and the repeating unit (Y2) as 100% by mass: The absolute value of a photoelastic coefficient (C) of the acrylic thermoplastic resin is not greater than 3.0×10?12 Pa?1. The halogen atom content is less than 0.47% by mass with reference to the mass of the acrylic thermoplastic resin.Type: GrantFiled: May 27, 2011Date of Patent: September 2, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Masami Yonemura, Mayuko Kimura
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Patent number: 8816014Abstract: There are provided a modified conjugated diene-based polymer having a good balance between the hysteresis loss properties and the wet skid resistance, practically sufficient abrasion resistance and fracture strength, and high processability when formed into a vulcanized product, and a modified conjugated diene-based polymer composition. A method for producing a modified conjugated diene-based polymer, comprising: a polymerization step of polymerizing a conjugated diene compound or copolymerizing a conjugated diene compound with an aromatic vinyl compound using an alkali metal compound or an alkaline earth metal compound as a polymerization initiator to obtain a conjugated diene-based polymer having a reactive end, and a modifying step of reacting a compound having a specific structure with the reactive end of the conjugated diene-based polymer.Type: GrantFiled: September 22, 2010Date of Patent: August 26, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Junichi Yoshida, Shinichi Sekikawa, Takaaki Matsuda
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Publication number: 20140230887Abstract: An object of the present invention is to provide a flame-retardant resin composition having high flame retardancy, and a flame-retardant resin film having high thickness precision and excellent flame retardancy and a solar battery back sheet. The flame-retardant resin film according to the present invention is a flame-retardant resin film obtained from a resin composition, wherein the resin composition comprises a polyphenylene ether resin (a), a phosphorus flame retardant (b), and a fluorine-containing resin (c); in the resin composition, the content of the component (a) is 75 to 98 parts by mass and the content of the component (b) is 25 to 2 parts by mass, based on 100 parts by mass of the components (a) and (b) in total; the content of a fluorine element in the resin composition is 100 to 1000 mass ppm; and the flame-retardant resin film has a thickness of 20 to 500 ?m.Type: ApplicationFiled: May 18, 2012Publication date: August 21, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Yutaka Eguchi, Minoru Sakata, Hiroaki Furukawa
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Publication number: 20140235837Abstract: 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: ApplicationFiled: September 28, 2012Publication date: August 21, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Yuta Sato, Naoyuki Shinohara, Hironobu Shirataki
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Publication number: 20140220245Abstract: A hollow weave fabric for an air bag in which the periphery of a double-layer hollow weave portion is formed with a seam zone, wherein the warp yarn and the weft yarn forming the base fabric are each a poly(hexamethylene adipamide) fiber having a total size of 150 to 500 dtex, the double-layer hollow weave portion has a fabric weight of 120 to 350 g/m2 on one side, and the fabric shows a logarithmic decrement of 0.01 to 0.10.Type: ApplicationFiled: April 4, 2014Publication date: August 7, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventor: Toshihiro NAGAOKA
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Publication number: 20140213721Abstract: A method for producing a modified conjugated diene-based polymer including a polymerization step of obtaining a conjugated diene-based polymer having an active end by use of a polymerization initiator containing a compound having at least one nitrogen atom in a molecule and an organic lithium compound; and a modification step of reacting a modifier represented by the following chemical formula (6) with the active end of the conjugated diene-based polymer: wherein R4 to R7 each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms; R8 represents an alkylene group having 3 to 10 carbon atoms; R9 represents an alkylene group having 1 to 20 carbon atoms; m is an integer of 1 or 2; and n is an integer of 2 or 3.Type: ApplicationFiled: August 28, 2012Publication date: July 31, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Chigusa Yamada, Junichi Yoshida
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Publication number: 20140206050Abstract: An object of the present invention is to provide a DOI synthase having properties such as stability to heat and pH, which are superior to those of conventional enzymes, and a method for producing DOI using the above-mentioned enzyme. The present invention provides a 2-deoxy-scyllo-inosose synthase having the properties described in the following (1), (2), (4), (6) and (7), and also having the properties described in the following (3) and/or (5): (1) action: the enzyme has a function to convert glucose-6-phosphate to 2-deoxy-scyllo-inosose; (2) optimum pH range: pH 7.0 to 7.7; (3) stable pH range: pH 6.0 to 8.0; (4) optimum temperature range: 55° C. to 70° C.; (5) stable temperature range: 20° C. to 46° C.; (6) coenzyme used: NAD+; and (7) molecular weight: 39,000 to 42,000.Type: ApplicationFiled: February 5, 2014Publication date: July 24, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Kazunobu Konishi, Shinichi Imazu
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Publication number: 20140206810Abstract: A resin composition having a high thermal aging property and molding stability in mass production of molded articles while keeping molding fluidity and thermal creep resistance is provided. A resin composition, containing 100 parts by mass in total of a polypropylene resin (a) and a polyphenylene ether resin (b), and 1 to 20 parts by mass of a compatibilizer (c), wherein in the component (a), the proportion of the component having a molecular weight of 30,000 or less is from 3.0 to 5.1% of the entire component (a), and the proportion of the component having a molecular weight of 10,000,000 or more is from 1.0 to 1.6% of the entire component (a).Type: ApplicationFiled: July 5, 2012Publication date: July 24, 2014Applicant: ASAHI KASEI CHEMICALS CORPORATIONInventors: Shunichiro I, Koichiro Yoshida, Takaaki Miyoshi
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Patent number: 8785675Abstract: It is an object of the present invention to provide a mixed catalyst for a vapor-phase catalytic oxidation or a vapor-phase catalytic ammoxidation reaction of propane, or isobutene, capable of providing a corresponding unsaturated acid or unsaturated nitrile at high yield from propane or isobutene.Type: GrantFiled: March 23, 2011Date of Patent: July 22, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Takaaki Kato, Minoru Kadowaki
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Patent number: 8784963Abstract: A branched polycarbonate having a branching derived from a polyfunctional compound, comprising a repeating unit represented by general formula (1), a branched structure (a) derived from the polyfunctional compound and a branched structure (b) including at least one selected from the group consisting of branched structures represented by general formulas (2), (3) and (4), the total content of (a) and (b) with respect to (1) being 0.2-1.0 mol %, the ratio of (b) with respect to the total of (a) and (b) being 0.1-0.6, and the ratio of (2) with respect to the content of (b) being 0.5 or greater. [In formulas, Ar represents a divalent aromatic residue and Ar? represents a trivalent aromatic residue.Type: GrantFiled: July 5, 2011Date of Patent: July 22, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Nobutsugu Namba, Yoko Hachiya
