Patents Assigned to Asahi Kasei Chemicals Corporation
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Patent number: 10053402Abstract: A method for producing a conjugated diolefin is configured as follows. A monoolefin having four or more carbon atoms is fed from a monoolefin feed nozzle(s) installed at n place(s) (n=1, 2, . . . , n). In addition, at least 50% or more of a total amount of an oxygen-containing gas is fed from an oxygen-containing gas feed nozzle located at a bottom of a fluidized bed reactor. Furthermore, the monoolefin feed nozzles at heights a1, a2, . . . , an from the oxygen-containing gas feed nozzle feed the monoolefin having four or more carbon atoms at ratios of b1, b2, . . . , bn (b1+b2+ . . . +bn=1), respectively, and a weighted mean value represented by the following formula and obtained from the above heights and the above ratios is 200 mm to 3000 mm. arithmetic mean value=a1*b1+a2*b2+ . . .Type: GrantFiled: August 4, 2017Date of Patent: August 21, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Hideo Midorikawa, Mamoru Watanabe
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Patent number: 10023709Abstract: The present invention relates to a multiporous hollow-fiber membrane containing a thermoplastic resin, in which an aspect ratio of outer surface pores is 10 or more, an aspect ratio of inner surface pores is 1 to 5, and a thickness of a polymer backbone forming the outer surface pores is 1 ?m to 20 ?m.Type: GrantFiled: March 18, 2014Date of Patent: July 17, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Yuki Miki, Daisuke Okamura
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Patent number: 10023760Abstract: Provided is a semicarbazide composition comprising: a semicarbazide compound (A) having an amino group and a semicarbazide group; a semicarbazide compound (B-1) having a structure with a semicarbazide group substituted for the amino group of the semicarbazide compound (A); a semicarbazide compound (B-2) as a dimer of the semicarbazide compound (B-1); and a semicarbazide compound (B-3) as a trimer of the semicarbazide compound (B-1); the semicarbazide composition having an analysis area ratio (a) of 0.008% or more and 2% or less.Type: GrantFiled: November 15, 2013Date of Patent: July 17, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Toyoaki Yamauchi, Takayuki Miyazaki, Takahiro Itamochi
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Patent number: 10016749Abstract: A catalyst composition for hydrogenation including (A) to (D), in which a mass ratio ((C)/(A)) is 0.1 to 4.0 and a mass ratio ((D)/(A)) is 0.01 to 1.00, (A): a titanocene compound represented by formula (1), (wherein R5 and R6 are any group selected from hydrogen, a hydrocarbon group having 1 to 12 carbon atoms, an aryloxy group, an alkoxy group, a halogen group, and a carbonyl group. R1 and R2 are any group selected from the group consisting of hydrogen and a hydrocarbon group having 1 to 12 carbon atoms, and R1 and R2 are not all hydrogen atoms or all a hydrocarbon group having 1 to 12 carbon atoms), (B): a reductant formed from a compound containing an element selected from the elements Li, Na, K, Mg, Zn, Al, and Ca, (C): an unsaturated compound having a molecular weight of 400 or less, and (D): a polar compound.Type: GrantFiled: September 12, 2013Date of Patent: July 10, 2018Assignee: Asahi Kasei Chemicals CorporationInventors: Yoshifumi Araki, Eiji Sasaya, Katsunori Nitta
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Patent number: 10010855Abstract: 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: GrantFiled: May 12, 2015Date of Patent: July 3, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Mitsuo Konishi, Masakazu Sato
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Patent number: 10000743Abstract: The disclosure provides 2-deoxy-scyllo-inosose reductases derived from a microorganism having the ability to utilize (?)-vibo-quercitol, recombinant vectors and transformants comprising genes encoding the same, and methods of use thereof.Type: GrantFiled: December 5, 2014Date of Patent: June 19, 2018Assignee: Asahi Kasei Chemicals CorporationInventors: Kazunobu Konishi, Nobuya Itoh, Junji Kurokawa
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Patent number: 9994871Abstract: To impart significantly improved myo-inositol producing capability, suitable for use in recombinant DNA techniques and synthetic biology methods, to a host microorganism that does not possess an endogenous myo-inositol biosynthesis pathway, such as Escherichia coli. Inositol monophosphatase activity is strengthened in a transformant obtained by introducing a myo-inositol biosynthesis pathway into a host microorganism that does not possess an endogenous myo-inositol biosynthesis pathway.Type: GrantFiled: March 22, 2016Date of Patent: June 12, 2018Assignee: Asahi Kasei Chemicals CorporationInventors: Kazunobu Konishi, Shinichi Imazu, Mayumi Sato
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Patent number: 9991622Abstract: Provided is an electric component equipped with a live electrical part and an insulating resin molded article that is molded from a thermoplastic resin composition and is in contact with the live electrical part, wherein: the thermoplastic resin composition includes (A) 60 to 80 parts by mass of a polyphenylene ether resin or a mixture of a polyphenylene ether resin and a styrene resin, (B) 60 to 80 parts by mass of a hydrogenated block copolymer, (C) 5 to 30 parts by mass of a flame retardant, and (D) 0.1 to 3 parts by mass of titanium oxide (in an amount corresponding to 100 parts by mass of the total of (A) to (C)).Type: GrantFiled: June 30, 2014Date of Patent: June 5, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Hiroyuki Kono, Kazuyuki Ogata, Tadayuki Ishii
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Patent number: 9950273Abstract: The present invention provides a separation method of separating (A) and (B), comprising: a step of separating at least either an active hydrogen-containing compound (A) or a compound (B) that reversibly reacts with (A) from a mixture containing (A) and (B) by distillation in a multistage distillation column; and a step of supplying the mixture to an inactive region formed within the multistage distillation column.Type: GrantFiled: March 30, 2012Date of Patent: April 24, 2018Assignee: Asahi Kasei Chemicals CorporationInventors: Masaaki Shinohata, Nobuhisa Miyake
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Patent number: 9920148Abstract: A vehicle part cover including a methacrylic-based resin (I) having a weight average molecular weight measured by gel permeation chromatography (GPC) of 65,000 to 300,000, the methacrylic-based resin (I) comprising: 50 to 97% by mass of a methacrylate monomer unit (A); 3 to 30% by mass of a structural unit (B) having a ring structure in its main chain, and being at least one selected from the group consisting of a maleimide-based structural unit, a glutaric anhydride structural unit, a glutarimide-based structural unit, and a lactone ring structural unit; and 0 to 20% by mass of another vinyl monomer unit (C) that is copolymerizable with a methacrylate monomer.Type: GrantFiled: October 19, 2012Date of Patent: March 20, 2018Assignee: Asahi Kasei Chemicals CorporationInventor: Fumiki Murakami
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Patent number: 9919283Abstract: An object of the present invention is to provide, for the production of isobutene, a high-yielding, highly-selective, and long-term stable production process of isobutene from TBA. With respect to the production of TBA, an object of the present invention is to provide a TBA production process in which, through long-term stable maintenance of a high reaction activity, long-term continuous operation is enabled and the productivity is improved. The present invention discloses a process for producing isobutene that employs a dehydration temperature of from 200 to 450° C. in use of an alumina catalyst that contains a Na content of 0.6% by weight or less in terms of NaO2 and a Na content of 0.4% by weight in terms of NaO2, and has a specific surface area of from 200 to 600 m2/g.Type: GrantFiled: August 26, 2015Date of Patent: March 20, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Tatsuo Yamaguchi, Hiroyuki Noda, Toru Watanabe, Shunya Kirino
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Patent number: 9902843Abstract: A polyamide resin composition includes: (A) a polyamide resin; (B) an aluminic acid metal salt; and (C) at least one or more compounds selected from the group consisting of the following (C1) to (C3): (C1) a salt of one or more metal elements selected from the group consisting of groups 3, 4, 11, 13, and 14 of the periodic table, (C2) at least one organic heat stabilizer selected from the group consisting of a hindered phenol compound, a hindered amine compound, and an organic phosphorus compound, and (C3) a crystalline thermoplastic resin having a lower melting point than that of the component (A) and/or an amorphous thermoplastic resin having a lower Vicat softening point than that of the component (A), and wherein the content of the component (B) is 0.03 to 20 parts by mass with respect to 100 parts by mass in total of the component (A) and the component (C3).Type: GrantFiled: September 24, 2014Date of Patent: February 27, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Tomoyo Kawamura, Masashi Okamoto, Yasukazu Shikano, Katsushi Watanabe
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Patent number: 9884810Abstract: Disclosed is a method for separating, with a multi-stage distillation column, a mixture containing an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the active hydrogen containing compound (A), the method comprising distillation-separating the active hydrogen-containing compound (A) and the compound (B) with the multi-stage distillation column in the presence of an intermediate-boiling-point inactive compound (C) that has a normal boiling point between a normal boiling point of the active hydrogen-containing compound (A) and a normal boiling point of the compound (B) and is chemically inactive for both of the (A) and the compound (B).Type: GrantFiled: October 4, 2011Date of Patent: February 6, 2018Assignee: Asahi Kasei Chemicals CorporationInventors: Masaaki Shinohata, Nobuhisa Miyake
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Patent number: 9884931Abstract: Provided is a film for blister packs having barrier capability that is excellent in terms of impact resistance and thermal stability. Also provided is a vinylidene chloride polymer-containing latex that is ideal for producing the film. The coating layer of the film for a blister pack, and the latex, comprise a vinylidene chloride copolymer having a weight-average molecular weight, Mw, between 120,000 and 300,000 that is obtainable by emulsion polymerizing 70 to 95 parts by mass of vinylidene chloride and 30 to 5 parts by mass of one or more other monomer(s) copolymerizable with the vinylidene chloride, with the proviso that the total amount of vinylidene chloride and the other monomer(s) is 100 parts by mass).Type: GrantFiled: February 22, 2013Date of Patent: February 6, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Koichi Kameyama, Yoko Tanaka, Mitsuyuki Furukawa, Yosuke Yagi, Eiichi Kawasaki
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Publication number: 20180016208Abstract: A method for producing a conjugated diolefin is configured as follows. A monoolefin having four or more carbon atoms is fed from a monoolefin feed nozzle(s) installed at n place(s) (n=1, 2, . . . , n). In addition, at least 50% or more of a total amount of an oxygen-containing gas is fed from an oxygen-containing gas feed nozzle located at a bottom of a fluidized bed reactor. Furthermore, the monoolefin feed nozzles at distances a1, a2, . . . , an from the oxygen-containing gas feed nozzle feed the monoolefin having four or more carbon atoms at ratios of b1, b2, . . . , bn (b1+b2+ . . . +bn=1), respectively, and an arithmetic mean value represented by the following formula and obtained from the above distances and the above ratios is 100 mm or more. arithmetic mean value=a1*b1+a2*b2+ . . .Type: ApplicationFiled: August 4, 2017Publication date: January 18, 2018Applicant: Asahi Kasei Chemicals CorporationInventors: Hideo MIDORIKAWA, Mamoru WATANABE
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Patent number: 9855546Abstract: A method for producing a complex oxide catalyst containing a complex oxide represented by the formula: Mo1VaSbbNbcWdZeOn (wherein a component Z represents an element such as La, Ce, Pr, Yb, Y, Sc, Sr, and Ba; a, b, c, d, e, and n each represent an atomic ratio of an element to one Mo atom; 0.1?a?0.4, 0.1?b?0.4, 0.01?c?0.3, 0?d?0.2, and 0?e?0.1; an atomic ratio a/b is 0.85?a/b<1.0, and an atomic ratio a/c is 1.4<a/c<2.3.Type: GrantFiled: December 27, 2011Date of Patent: January 2, 2018Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Yusuke Ishii, Takaaki Kato
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Patent number: 9850052Abstract: The press-through pack package of the invention has a covering material composed of a stretched film with at least one layer comprising a thermoplastic resin and an inorganic filler at 5 parts by weight with respect to 100 parts by weight of the thermoplastic resin.Type: GrantFiled: November 22, 2011Date of Patent: December 26, 2017Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Masahiro Yagi, Hiroaki Kimura, Yutaka Matsuki, Hideki Hayashi
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Patent number: 9827538Abstract: 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: GrantFiled: August 1, 2016Date of Patent: November 28, 2017Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Yusuke Ishii, Takaaki Kato
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Patent number: 9821501Abstract: Methods of producing a deformed porous hollow fiber membrane by thermally induced phase separation, particularly by discharging a fusion kneaded product containing a thermoplastic resin and an organic liquid through an orifice of a hollow fiber-forming deformed nozzle; cooling and solidifying the fusion kneaded product discharged through the deformed nozzle to form the product into a hollow fiber-like material having a deformed cross section at a cross section vertical to a discharging direction; and extracting away the organic liquid from the hollow fiber-like material to obtain the deformed porous hollow fiber membrane, wherein an inorganic fine powder is kneaded in the fusion kneaded product.Type: GrantFiled: January 22, 2015Date of Patent: November 21, 2017Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Hirokazu Fujimura, Masatoshi Hashino, Noboru Kubota, Hideto Matsuyama
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Patent number: 9809511Abstract: A method for producing a conjugated diolefin is configured as follows. A monoolefin having four or more carbon atoms is fed from a plurality of monoolefin feed nozzles. In addition, at least 50% or more of a total amount of an oxygen-containing gas is fed from an oxygen-containing gas feed nozzle located at a bottom of a fluidized bed reactor. Furthermore, the plurality of monoolefin feed nozzles at n places located at heights a1, a2, . . . , and an from the oxygen-containing gas feed nozzle, respectively, feed the monoolefin having four or more carbon atoms at ratios of b1, b2, . . . , bn (b1+b2+ . . . +bn=1), respectively. Furthermore, a weighted mean value represented by the following formula is 100 mm or greater: weighted mean value=a1*b1+a2*b2+ . . . +an*bn.Type: GrantFiled: October 16, 2013Date of Patent: November 7, 2017Assignee: ASAHI KASEI CHEMICALS CORPORATIONInventors: Hideo Midorikawa, Mamoru Watanabe