Patents Assigned to Ube Material Industries, Ltd.
  • Publication number: 20200246864
    Abstract: A magnesium oxide powder has: a median diameter (D50) of 5 to 100 ?m; a MgO purity of 98% by mass or more; a Ca compound content of 2% by mass or less in terms of CaO; and when the magnesium oxide powder is immersed in pure water and allowed to stand at 95° C. for 24 hours, a mass ratio of calcium ions to magnesium ions, Ca/Mg, in an aqueous solution of 10 or less.
    Type: Application
    Filed: November 5, 2018
    Publication date: August 6, 2020
    Applicant: Ube Materials Industries, Ltd.
    Inventors: Naoto Nishida, Koji Nakamura, Takashi Arase
  • Publication number: 20200181377
    Abstract: Provided are a resin composition and masterbatch pellets, which enable a molded resin composition product to improve both flexural modulus and Izod impact strength, and a molded resin composition product having both improved flexural modulus and improved Izod impact strength, and a method for producing the same. The resin composition includes 45 to 95 mass % of an olefin polymer, 1 to 50 mass % of fibrous basic magnesium sulfate, 0.00001 to 0.8 mass % of spherical silica particles, and 0.1 to 10 mass % of a lubricant. Also, the masterbatch pellets are for production of the resin composition by kneading the masterbatch pellets with a diluent containing olefin polymer, and the masterbatch pellets contain 10 to 50 mass % of an olefin polymer, 35 to 80 mass % of fibrous basic magnesium sulfate, 0.00005 to 5.0 mass % of spherical silica particles, and 0.5 to 10 mass % of a lubricant.
    Type: Application
    Filed: September 26, 2017
    Publication date: June 11, 2020
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Ryoichi Nomura, Kazuki Yoshihara
  • Patent number: 10501635
    Abstract: To provide magnesium oxide which is excellent in hydration resistance and hardly causes volume expansion due to hydration and the like, a resin composition containing the same, and a method for producing the magnesium oxide powder. Magnesium oxide powder having a coating layer mainly comprising basic magnesium carbonate in the surface layer, when the amounts of substances of water vapor and carbon dioxide among the gas generated by thermal decomposition at 50 to 500° C. are respectively designated as m-H2O and m-CO2, in a heating evolved gas analysis (EGA-MS) method, the molar fraction represented by m-CO2/(m-H2O+m-CO2) being within the range of 0.3 to 0.6.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: December 10, 2019
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Naoto Nishida, Tatsuki Okutsu, Naoki Funabashi, Akira Yoshida
  • Patent number: 10479877
    Abstract: A filler composition comprising fibrous basic magnesium sulfate particles and non-fibrous inorganic micro-particles having an average particle diameter in the range of 0.001 to 0.5 ?m in a ratio by weight in the range of 100:0.001 to 100:50, and a polyolefin resin composition comprising a polyolefin resin, fibrous basic magnesium sulfate particles and non-fibrous inorganic micro-particles having an average particle diameter in the range of 0.001 to 0.5 ?m, in which the polyolefin resin and fibrous basic magnesium sulfate particles are present in a weight ratio of 99:1 to 50:50, and the non-fibrous inorganic micro-particles are present in an amount of 0.001 to 50 weight parts per 100 weight parts of the basic fibrous magnesium sulfate particles and/or in an amount of 0.0002 to 10 weight parts, per 100 weight parts of the resin.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: November 19, 2019
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Takashi Idemitsu, Shotaro Hida, Tetsuo Takayama, Ryoichi Nomura
  • Patent number: 10030150
    Abstract: A fine magnesium oxide particle dispersion liquid containing an aprotic solvent, and fine magnesium oxide particles that are dispersed in the aprotic solvent, wherein the dispersion liquid has D50 of 200 nm or less in a particle size distribution as measured by a dynamic light scattering method, and has a content rate of coarse particles having an average particle diameter of 500 nm or more of less than 1%, and a method for producing the fine magnesium oxide particle dispersion liquid.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: July 24, 2018
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Seiji Noguchi, Yuzo Kato, Masayuki Fujimoto
  • Patent number: 9938443
    Abstract: A magnesium oxide material includes a magnesium oxide powder treated with a halogen compound and a silane coupling agent. A method of producing a magnesium oxide material includes a step including preparing a magnesium oxide powder, a halogen compound treatment step including subjecting the magnesium oxide powder to a surface treatment with a halogen compound, and a silane coupling agent treatment step including subjecting the magnesium oxide powder to a surface treatment with a silane coupling agent.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: April 10, 2018
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Masayuki Fujimoto, Yuzo Kato, Seiji Noguchi
  • Publication number: 20180044530
    Abstract: To provide magnesium oxide which is excellent in hydration resistance and hardly causes volume expansion due to hydration and the like, a resin composition containing the same, and a method for producing the magnesium oxide powder. Magnesium oxide powder having a coating layer mainly comprising basic magnesium carbonate in the surface layer, when the amounts of substances of water vapor and carbon dioxide among the gas generated by thermal decomposition at 50 to 500° C. are respectively designated as m-H2O and m-CO2, in a heating evolved gas analysis (EGA-MS) method, the molar fraction represented by m-CO2/(m-H2O+m-CO2) being within the range of 0.3 to 0.6.
    Type: Application
    Filed: March 2, 2016
    Publication date: February 15, 2018
    Applicant: Ube Material Industries, Ltd.
    Inventors: Naoto Nishida, Tatsuki Okutsu, Naoki Funabashi, Akira Yoshida
  • Patent number: 9828538
    Abstract: A thermally conductive resin filler including a sintered body containing at least magnesium oxide, calcium oxide, and silicon oxide, the thermally conductive filler being characterized in that, when the molar number of calcium element contained in the total composition of the sintered body in terms of calcium oxide (CaO) is defined as MCa, and the molar number of silicon element contained in the total composition of the sintered body in terms of silicon oxide (SiO2) is defined as MSi, the molar ratio of the calcium oxide (CaO) to the silicon oxide (SiO2) represented by MCa/MSi is in the range of 0.1 or more and less than 2.0.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: November 28, 2017
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Naoto Nishida, Seiji Yamaguchi, Akira Yoshida, Satoshi Shimmatsu
  • Patent number: 9773652
    Abstract: Disclosed is an MgO target for sputtering, which can accelerate a film formation rate even when MgO is used as a target for sputtering in the formation of an MgO film. The MgO target for sputtering, which includes MgO and an electroconductive material as main components, and in which the electroconductive material is capable of imparting orientation to a MgO film when the MgO film containing the electroconductive material is formed by a DC sputtering.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: September 26, 2017
    Assignees: UBE MATERIAL INDUSTRIES, LTD., NIPPON TUNGSTEN CO., LTD.
    Inventors: Satoru Sano, Yoshihiro Nishimura, Takayuki Watanabe, Yuuzou Katou, Akira Ueki, Shinzo Mitomi, Masanobu Takasu, Yusuke Hara, Takaaki Tanaka
  • Patent number: 9701808
    Abstract: A resin composition having high compositional uniformity can be advantageously prepared in industry by depositing a mixture comprising polyolefin particles and fibrous basic magnesium sulfate aggregated particles which satisfies the condition that a value resulting from calculation of formula of DA2×?A/DB2×?B is in the range of 0.2 to 5 in a hopper of a melt kneader through a supply port of the hopper and introducing the deposited mixture into the melt kneader so as to melt and knead the mixture therein, in which DA is a mean particle size (unit: cm) of the polyolefin particles, ?A is a density (unit: g/cm3) of the polyolefin, DB is a mean particle size (unit: cm) of the fibrous basic magnesium sulfate aggregated particles, and ?B is an apparent density (unit: g/cm3) of the aggregated particles.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: July 11, 2017
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Ryouichi Nomura, Yojiro Ichimura
  • Publication number: 20170096562
    Abstract: A fine magnesium oxide particle dispersion liquid containing an aprotic solvent, and fine magnesium oxide particles that are dispersed in the aprotic solvent, wherein the dispersion liquid has D50 of 200 nm or less in a particle size distribution as measured by a dynamic light scattering method, and has a content rate of coarse particles having an average particle diameter of 500 nm or more of less than 1%, and a method for producing the fine magnesium oxide particle dispersion liquid.
    Type: Application
    Filed: March 23, 2015
    Publication date: April 6, 2017
    Applicant: Ube Materials Industries, Ltd.
    Inventors: Seiji Noguchi, Yuzo Kato, Masayuki Fujimoto
  • Patent number: 9605200
    Abstract: The deep red light-emitting magnesium fluorogermanate phosphor prepared by calcining a mixture comprising a fine magnesium oxide powder having a BET specific surface area in the range of 5-200 m2/g, a fluorine compound, a germanium compound and a manganese compound gives a light emission having a maximum peak of increased strength in the wavelength region of 640-680 nm upon excitation with a light having a wavelength of 400 nm.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: March 28, 2017
    Assignees: UBE MATERIAL INDUSTRIES, LTD., UBE INDUSTRIES, LTD.
    Inventors: Kouichi Fukuda, Rika Nogita, Jin Amagai, Toru Inagaki
  • Publication number: 20170044417
    Abstract: A magnesium oxide material includes a magnesium oxide powder treated with a halogen compound and a silane coupling agent. A method of producing a magnesium oxide material includes a step including preparing a magnesium oxide powder, a halogen compound treatment step including subjecting the magnesium oxide powder to a surface treatment with a halogen compound, and a silane coupling agent treatment step including subjecting the magnesium oxide powder to a surface treatment with a silane coupling agent.
    Type: Application
    Filed: February 12, 2015
    Publication date: February 16, 2017
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Masayuki Fujimoto, Yuzo Kato, Seiji Noguchi
  • Publication number: 20160286794
    Abstract: A plant disease control agent contains a magnesium oxide obtained by firing magnesium hydroxide at 400 to 1000° C. and a nonionic surfactant that contains a polyoxyalkylene group and has an HLB value of 14.5 or less. Alternatively, a plant disease control agent contains a magnesium oxide that generates radical species and nonionic surfactant that contains a polyoxyalkylene group and has an HLB value within a range of 14.5 or less.
    Type: Application
    Filed: November 4, 2014
    Publication date: October 6, 2016
    Applicant: UBE MATERIALS INDUSTRIES, LTD.
    Inventors: Shoji Sakai, Shinichi Ito
  • Publication number: 20160222273
    Abstract: A thermally conductive resin filler including a sintered body containing at least magnesium oxide, calcium oxide, and silicon oxide, the thermally conductive filler being characterized in that, when the molar number of calcium element contained in the total composition of the sintered body in terms of calcium oxide (CaO) is defined as MCa, and the molar number of silicon element contained in the total composition of the sintered body in terms of silicon oxide (SiO2) is defined as MSi, the molar ratio of the calcium oxide (CaO) to the silicon oxide (SiO2) represented by MCa/MSi is in the range of 0.1 or more and less than 2.0.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 4, 2016
    Applicant: Ube Materials Industries, Ltd.
    Inventors: Naoto Nishida, Seiji Yamaguchi, Akira Yoshida, Satoshi Shimmatsu
  • Patent number: 9187338
    Abstract: Acicular strontium carbonate particles are manufactured by introducing gaseous carbon dioxide into an aqueous solution or suspension of strontium hydroxide having a concentration of 1 to 20 wt. %, at a flow rate of 0.5 to 200 mL/min., relative to one gram of the strontium hydroxide, while stirring the solution or suspension in the presence of a dicarboxylic acid, in which the dicarboxylic acid comprises a divalent linear hydrocarbon group having one to four carbon atoms and carboxyl group bonded to each terminals, with the proviso that the linear hydrocarbon group may be substituted with one or more C1-6 alkyl groups, and thus carbonating the strontium hydroxide.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: November 17, 2015
    Assignee: Ube Material Industries, Ltd.
    Inventors: Fumio Okada, Takeshi Himoto, Masayuki Fujimoto
  • Patent number: 9115033
    Abstract: A moisture absorbent for an organic EL element having hydrophobicity and no reduction in moisture absorption speed, and a method for producing the moisture absorbent are provided. The moisture absorbent for an organic EL element includes, as a main component, calcium oxide particles each having an alkoxide layer on the surface thereof. Furthermore, the method for producing a moisture absorbent for an organic EL element includes dry-pulverizing calcium oxide in the presence of an alcohol, and thereafter dry-treating the pulverized calcium oxide.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: August 25, 2015
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Takayuki Watanabe, Akihiro Moto, Takuya Mishima, Satoru Sano, Akira Ueki
  • Patent number: 9117981
    Abstract: A silicate phosphor having a coating layer comprising a fluorine-containing compound on its surface which is obtained by a method of heating a mixture of 100 weight parts of a silicate phosphor and 0.5-15 weight parts of ammonium fluoride at a temperature in the range of 200 to 600° C. exhibits high light emission intensity and high moisture resistance.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: August 25, 2015
    Assignee: UBE Material Industries, Ltd.
    Inventors: Kouichi Fukuda, Jin Amagai, Seiji Noguchi, Toru Inagaki, Masaki Tanaka
  • Patent number: 9102810
    Abstract: Dispersibility of an alkaline earth metal carbonate micropowder in a polymer resin or in an organic solvent is improved by treating the surface of the alkaline earth metal micropowder with a surfactant having hydrophilic groups and hydrophobic groups and groups that form anions in water.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: August 11, 2015
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Fumio Okada, Takeshi Himoto, Masayuki Fujimoto
  • Patent number: 9067799
    Abstract: An acicular strontium carbonate fine powder having a mean length of 150 nm or less and a mean aspect ratio of 1.5 or more and containing acicular strontium carbonate particles having a length of 200 nm or more in an amount of 5% or less in terms of number of acicular particles is improved in its dispersibility in hydrophobic organic solvent by treating the acicular strontium carbonate fine powder with a combination of polycarboxylic acid having a side chain of a polyoxyalkylene group or its anhydride and amine having a polyoxyalkylene group and a hydrocarbyl group.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 30, 2015
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Fumio Okada, Takeshi Himoto, Rika Nogita, Kouichi Fukuda