Patents Assigned to Ube Material Industries, Ltd.
  • Patent number: 8388915
    Abstract: A method for producing basic magnesium sulfate granules, by heating a water-containing granular composition to a temperature of 50-250° C. to dryness. The granular composition has a water content of 10-60 wt. % and comprises fibrous basic magnesium sulfate particles, magnesium hydroxide in an amount of 5-300 weight parts per 100 weight parts of the fibrous basic magnesium sulfate particles, magnesium sulfate in an amount of 0.1-200 weight parts per 100 weight parts of a total amount of the fibrous basic magnesium sulfate particles and magnesium hydroxide. This method can give basic magnesium sulfate granules having a low bulk density and a high crushing strength.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: March 5, 2013
    Assignee: Ube Material Industries, Ltd.
    Inventors: Shinichi Yamamoto, Takashi Kishimoto
  • Patent number: 8388928
    Abstract: Provided is an apparatus for producing magnesium-containing zinc oxide, including: zinc vapor producing means 11 which produces zinc vapor by heating metallic zinc; magnesium vapor producing means 15 which produces magnesium vapor by heating metallic magnesium; mixed vapor producing means 20 which produces mixed vapor by mixing the zinc vapor and the magnesium vapor; and oxidizing gas contact means 19 which produces magnesium-containing zinc oxide by bringing an oxidizing gas into contact with the mixed vapor. The content of zinc in the mixed vapor is adjusted to be higher than that of magnesium.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: March 5, 2013
    Assignee: Ube Material Industries, Ltd
    Inventor: Koji Shibata
  • Patent number: 8388749
    Abstract: A fine strontium carbonate powder having a BET specific surface area of 20 to 150 m2/g, which comprises spherical particles having a mean aspect ratio of 2.0 or less shows high dispersibility in liquid media and is of value for producing dielectric ceramic materials such as strontium titanate.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: March 5, 2013
    Assignee: Ube Material Industries, Ltd.
    Inventors: Fumio Okada, Takeshi Himoto
  • Patent number: 8383704
    Abstract: A molded propylene polymer product improved in flexural properties and/or impact resistance is prepared by a process comprising the steps of blending fibrous inorganic filler-containing pellets with a propylene polymer-containing matrix resin composition, in which the pellets comprises 35-80 wt. % of a fibrous inorganic filler, 1-45 wt. % of an olefin polymer, 5-45 wt. % of an elastomer, and 0.3-10.0 wt. % of a specific lubricant; kneading the blended product under molten condition; and molding the kneaded product.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: February 26, 2013
    Assignees: Honda Motor Co., Ltd., Ube Material Industries, Ltd.
    Inventors: Atsushi Takeuchi, Shinichi Yamamoto, Takashi Kishimoto
  • Patent number: 8304074
    Abstract: A fine powder of an alkaline earth metal carbonate selected from the group consisting of barium carbonate, strontium carbonate and calcium carbonate, in which a primary particle of the powder has a mean diameter of 30 to 90 nm, in which the mean diameter is measured on a circle obtained from a projected area of the primary particle, and in which an accumulated volume of micropores having a pore size in the range of 10 to 20 nm is not less than 5×10?2 cm3/g can be easily dispersed in an aqueous medium in the form of essentially primary particles by an industrially employable dispersing method.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: November 6, 2012
    Assignee: Ube Material Industries, Ltd.
    Inventors: Yojiro Ichimura, Takashi Watanabe, Fumio Okada
  • Publication number: 20120214927
    Abstract: A fine strontium carbonate powder having a BET specific surface area of 20 to 150 m2/g, which comprises spherical particles having a mean aspect ratio of 2.0 or less shows high dispersibility in liquid media and is of value for producing dielectric ceramic materials such as strontium titanate.
    Type: Application
    Filed: October 28, 2010
    Publication date: August 23, 2012
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Fumio Okada, Takeshi Himoto
  • Patent number: 8247485
    Abstract: Fibrous basic magnesium sulfate-containing pellets comprising an olefin polymer and fibrous basic magnesium sulfate in a weight ratio of 80:20 to 20:80 and further comprising a nucleating agent in an amount of 0.3 to 8 weight parts based on 100 weight parts of the olefin polymer and in an amount of 0.2 to 4 weight parts based on 100 weight parts of the fibrous basic magnesium sulfate are favorably employable for producing molded fibrous basic magnesium sulfate-containing propylene polymer products which show high flexural modulus, high flexural strength and high yield strength in tension as well as excellent thermal stability.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: August 21, 2012
    Assignee: UBE Material Industries, Ltd
    Inventors: Shinichi Yamamoto, Takashi Kishimoto
  • Patent number: 8232339
    Abstract: A molded fibrous basic magnesium sulfate filler-containing olefin polymer composition product is produced by a process comprising the steps of preparing a fibrous basic magnesium sulfate tiller-containing master batch composition which comprises an olefin polymer, a fibrous basic magnesium sulfate filler, an elastomer, a specific lubricant and a specific filler-surface treating agent; mixing the master batch composition and a propylene polymer-containing diluent resin; kneading the resulting mixture in a molten state; and molding the molten mixture to give the molded product.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: July 31, 2012
    Assignees: Honda Motor Co., Ltd., Ube Material Industries, Ltd.
    Inventors: Atsushi Takeuchi, Shinichi Yamamoto, Takashi Kishimoto
  • Patent number: 8178069
    Abstract: Basic magnesium sulfate granules having a bulk density of 0.5-1.0 g/cm3, a mean crushing strength of 700-900 g and a water content of 3 wt. % or less which comprises agglomerated particles of fibrous basic magnesium sulfate particles and fibrous xonotolite particles in a weight ratio of 95:5 to 70:30, wherein the fibrous basic magnesium sulfate particles have a mean length of 5-200 ?m and a mean thickness of 0.2-1.0 ?m and the fibrous xonotolite particles have a mean length less than that of the fibrous magnesium sulfate particles. The basic magnesium sulfate granules can be produced by drying a water-containing granular composition comprising agglomerated particles of fibrous basic magnesium sulfate particles and fibrous xonotolite particles which have a water content of 40 to 60 wt. % for 36 hours or more, thereby obtaining a granular composition having a water content of 3 wt. % or less.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: May 15, 2012
    Assignee: Ube Material Industries, Ltd.
    Inventors: Shinichi Yamamoto, Akifumi Sekitani
  • Publication number: 20120104318
    Abstract: Provided is an apparatus for producing magnesium-containing zinc oxide, including: zinc vapor producing means 11 which produces zinc vapor by heating metallic zinc; magnesium vapor producing means 15 which produces magnesium vapor by heating metallic magnesium; mixed vapor producing means 20 which produces mixed vapor by mixing the zinc vapor and the magnesium vapor; and oxidizing gas contact means 19 which produces magnesium-containing zinc oxide by bringing an oxidizing gas into contact with the mixed vapor. The content of zinc in the mixed vapor is adjusted to be higher than that of magnesium.
    Type: Application
    Filed: June 4, 2010
    Publication date: May 3, 2012
    Applicant: Ube Material Industries, Ltd.
    Inventor: Koji Shibata
  • Patent number: 8114366
    Abstract: Fibrous basic magnesium sulfate particles are continuously produced by the process comprising the following steps: (1) placing in a reaction vessel a seed particle-containing aqueous dispersion comprising fibrous basic magnesium sulfate seed particles dispersed in an aqueous medium; (2) supplying magnesium hydroxide and magnesium sulfate continuously into the reaction vessel under heating and stirring the seed particle-containing aqueous dispersion, whereby depositing basic magnesium sulfate produced by the reaction between the magnesium sulfate and magnesium hydroxide in the presence of water on the surfaces of the fibrous basic magnesium sulfate seed particles, to give an aqueous dispersion containing an increased amount of fibrous basic magnesium sulfate particles; (3) taking the aqueous dispersion obtained in the step (2) continuously out of the reaction vessel; and (4) recovering fibrous basic magnesium sulfate particles from the aqueous dispersion taken out of the reaction vessel.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 14, 2012
    Assignee: Ube Material Industries, Ltd.
    Inventor: Toru Adachi
  • Publication number: 20120029123
    Abstract: Fibrous basic magnesium sulfate-containing pellets comprising an olefin polymer and fibrous basic magnesium sulfate in a weight ratio of 80:20 to 20:80 and further comprising a nucleating agent in an amount of 0.3 to 8 weight parts based on 100 weight parts of the olefin polymer and in an amount of 0.2 to 4 weight parts based on 100 weight parts of the fibrous basic magnesium sulfate are favorably employable for producing molded fibrous basic magnesium sulfate-containing propylene polymer products which show high flexural modulus, high flexural strength and high yield strength in tension as well as excellent thermal stability.
    Type: Application
    Filed: January 26, 2011
    Publication date: February 2, 2012
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Shinichi Yamamoto, Takashi Kishimoto
  • Publication number: 20110275745
    Abstract: A modified magnesium oxysulfate fibrous particles in which the magnesium oxysulfate fibrous particles are treated on their surfaces with a nucleating agent such as a phosphoric acid compound, an organic acid compound or a sorbitol compound can be favorably employed as fillers for polyolefin composition.
    Type: Application
    Filed: July 19, 2011
    Publication date: November 10, 2011
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Shinichi YAMAMOTO, Takashi KISHIMOTO
  • Publication number: 20110237709
    Abstract: A molded fibrous basic magnesium sulfate filler-containing olefin polymer composition product is produced by a process comprising the steps of preparing a fibrous basic magnesium sulfate filler-containing master batch composition which comprises an olefin polymer, a fibrous basic magnesium sulfate filler, an elastomer, a fatty acid metal salt and a hydrocarbon or silicone oil or a hydrocarbon or silicone wax; mixing the master batch composition and a propylene polymer-containing diluent resin; kneading the resulting mixture in a molten state; and molding the molten mixture to give the molded product.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 29, 2011
    Applicants: HONDA MOTOR CO., LTD., UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Atsushi TAKEUCHI, Shinichi Yamamoto, Takashi Kishimoto
  • Publication number: 20110230608
    Abstract: A molded fibrous basic magnesium sulfate filler-containing olefin polymer composition product is produced by a process comprising the steps of preparing a fibrous basic magnesium sulfate tiller-containing master batch composition which comprises an olefin polymer, a fibrous basic magnesium sulfate filler, an elastomer, a specific lubricant and a specific filler-surface treating agent; mixing the master batch composition and a propylene polymer-containing diluent resin; kneading the resulting mixture in a molten state; and molding the molten mixture to give the molded product.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 22, 2011
    Applicants: HONDA MOTOR CO., LTD, UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Atsushi TAKEUCHI, Shinichi YAMAMOTO, Takashi KISHIMOTO
  • Patent number: 7976806
    Abstract: A granular material having a high strength and a large BET specific surface area composed of porous particles comprising calcium oxide and calcium hydroxide wherein the calcium oxide is contained in an amount of 30 to 80 weight % based on a total amount of the calcium oxide and calcium hydroxide and the porous particles have a BET specific surface area of 40 m2/g or more, or composed of porous particles comprising calcium oxide, magnesium oxide, calcium hydroxide, and magnesium hydroxide wherein a ratio of an amount of magnesium to a total of an amount of calcium and an amount of magnesium is in the range of 0.05 to 0.80, a total hydroxide content in the whole particles is in the range of 1 to 20 weight % and the porous particles have a BET specific surface area of 50 m2/g or more.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: July 12, 2011
    Assignees: Ube Material Industries, Ltd., Taiyo Nippon Sanso Corporation
    Inventors: Osamu Misumi, Shinichi Yamamoto, Takayuki Watanabe, Takashi Kishimoto, Takashi Watanabe, Fumio Okada, Yoshio Ishihara, Katsumasa Suzuki, Kaoru Sakoda
  • Publication number: 20110077336
    Abstract: A molded propylene polymer product improved in flexural properties and/or impact resistance is prepared by a process comprising the steps of blending fibrous inorganic filler-containing pellets with a propylene polymer-containing matrix resin composition, in which the pellets comprises 35-80 wt. % of a fibrous inorganic filler, 1-45 wt. % of an olefin polymer, 5-45 wt. % of an elastomer, and 0.3-10.0 wt. % of a specific lubricant; kneading the blended product under molten condition; and molding the kneaded product.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Applicants: HONDA MOTOR CO., LTD., UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Atsushi TAKEUCHI, Shinichi YAMAMOTO, Takashi KISHIMOTO
  • Publication number: 20110042297
    Abstract: Basic magnesium sulfate granules having a bulk density of 0.5-1.0 g/cm3, a mean crushing strength of 700-900 g and a water content of 3 wt. % or less which comprises agglomerated particles of fibrous basic magnesium sulfate particles and fibrous xonotolite particles in a weight ratio of 95:5 to 70:30, wherein the fibrous basic magnesium sulfate particles have a mean length of 5-200 ?m and a mean thickness of 0.2-1.0 ?m and the fibrous xonotolite particles have a mean length less than that of the fibrous magnesium sulfate particles. The basic magnesium sulfate granules can be produced by drying a water-containing granular composition comprising agglomerated particles of fibrous basic magnesium sulfate particles and fibrous xonotolite particles which have a water content of 40 to 60 wt. % for 36 hours or more, thereby obtaining a granular composition having a water content of 3 wt. % or less.
    Type: Application
    Filed: April 28, 2009
    Publication date: February 24, 2011
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Shinichi Yamamoto, Akifumi Sekitani
  • Publication number: 20110014116
    Abstract: Fibrous basic magnesium sulfate particles are continuously produced by the process comprising the following steps: (1) placing in a reaction vessel a seed particle-containing aqueous dispersion comprising fibrous basic magnesium sulfate seed particles dispersed in an aqueous medium; (2) supplying magnesium hydroxide and magnesium sulfate continuously into the reaction vessel under heating and stirring the seed particle-containing aqueous dispersion, whereby depositing basic magnesium sulfate produced by the reaction between the magnesium sulfate and magnesium hydroxide in the presence of water on the surfaces of the fibrous basic magnesium sulfate seed particles, to give an aqueous dispersion containing an increased amount of fibrous basic magnesium sulfate particles; (3) taking the aqueous dispersion obtained in the step (2) continuously out of the reaction vessel; and (4) recovering fibrous basic magnesium sulfate particles from the aqueous dispersion taken out of the reaction vessel.
    Type: Application
    Filed: March 27, 2009
    Publication date: January 20, 2011
    Applicant: UBE MATERIAL INDUSTRIES, LTD.
    Inventor: Toru Adachi
  • Publication number: 20100294657
    Abstract: Provided is a polycrystal MgO sintered body which is capable of having a sintered density close to a theoretical density thereof, and exhibiting excellent mechanical properties and heat conductivity, while reducing contamination of an atmosphere due to gas generation, and a production method for the sintered body. The polycrystal MgO sintered body has a unique crystalline anisotropy in which (111) faces are oriented along a surface applied with a uniaxial pressure at a high rate. The polycrystalline MgO sintered body is obtained by a method which comprises the steps of: sintering an MgO raw material powder having a particle size of 1 ?m or less, under a uniaxial pressure; and then subjecting the sintered powder to a heat treatment under an atmosphere containing 0.05 volume % or more of oxygen, at a temperature of 1273 K or more for 1 minute or more.
    Type: Application
    Filed: January 27, 2009
    Publication date: November 25, 2010
    Applicants: NIPPON TUNGSTEN CO., LTD., UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Mitsuyoshi Nagano, Masanobu Takasu, Yo Arita, Satoru Sano