Patents by Inventor Naoshi Murata

Naoshi Murata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10087159
    Abstract: To reduce formation of side products and to enhance a selectivity rate in a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and in a method for producing glycidyl (meth)acrylate. The present invention is characterized by a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate through a reaction of (meth)acrylic acid and epichlorohydrin; more specifically, the reaction is carried out by using 0.5 to 2 mol of epichlorohydrin relative to 1 mol of (meth)acrylic acid, and by adding epichlorohydrin to (meth)acrylic acid in the presence of a catalyst. Also, the present invention is characterized by a method for producing glycidyl (meth)acrylate through a reaction of 3-chloro-2-hydroxypropyl (meth)acrylate and a basic carbonate compound in a polar solvent.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 2, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Naoshi Murata, Hiroyuki Mori
  • Publication number: 20170305870
    Abstract: To reduce formation of side products and to enhance a selectivity rate in a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and in a method for producing glycidyl (meth)acrylate. The present invention is characterized by a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate through a reaction of (meth)acrylic acid and epichlorohydrin; more specifically, the reaction is carried out by using 0.5 to 2 mol of epichlorohydrin relative to 1 mol of (meth)acrylic acid, and by adding epichlorohydrin to (meth)acrylic acid in the presence of a catalyst. Also, the present invention is characterized by a method for producing glycidyl (meth)acrylate through a reaction of 3-chloro-2-hydroxypropyl (meth)acrylate and a basic carbonate compound in a polar solvent.
    Type: Application
    Filed: August 4, 2015
    Publication date: October 26, 2017
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Naoshi MURATA, Hiroyuki MORI
  • Patent number: 9796652
    Abstract: Provided is a method capable of efficiently manufacturing (meth)acrylic acid esters and aromatic carboxylic acid esters. This (meth)acrylic acid ester manufacturing method reacts a (meth)acrylic anhydride with a carbonate compound. For this aromatic carboxylic acid ester manufacturing method, which reacts a carboxylic anhydride with an aromatic carbonate in the presence of a catalyst, the catalyst is at least one kind selected from a set consisting of basic nitrogen-containing organic compounds, Group 1 metal compounds, and Group 2 metal compounds.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: October 24, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Patent number: 9783480
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 10, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Patent number: 9771315
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acyrlate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: September 26, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Publication number: 20170050912
    Abstract: Provided is a method capable of efficiently manufacturing (meth)acrylic acid esters and aromatic carboxylic acid esters. This (meth)acrylic acid ester manufacturing method reacts a (meth)acrylic anhydride with a carbonate compound. For this aromatic carboxylic acid ester manufacturing method, which reacts a carboxylic anhydride with an aromatic carbonate in the presence of a catalyst, the catalyst is at least one kind selected from a set consisting of basic nitrogen-containing organic compounds, Group 1 metal compounds, and Group 2 metal compounds.
    Type: Application
    Filed: May 27, 2015
    Publication date: February 23, 2017
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Takeshi MATSUO, Naoshi MURATA, Hiroyuki MORI
  • Publication number: 20170022136
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Patent number: 9540308
    Abstract: Method for producing an iron carboxylate, whereby it becomes possible to prevent the generation of hydrogen during the production of the iron carboxylate by the reaction of a carboxylic acid with metal iron. An embodiment of the present invention is a method for producing an iron carboxylate by reacting metal iron with a carboxylic acid in a reaction solution, wherein the reaction solution contains a non-iron metal having a standard electrode potential of ?2.5 to 0.1 inclusive or a metal compound containing the metal, or the reaction solution contains at least one metal selected from the group consisting of Ag, Bi and Pd or a metal compound containing the metal.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: January 10, 2017
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventors: Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Publication number: 20160289160
    Abstract: Provided is a low-tint (meth) acrylate aryl ester. This production method for (meth) acrylate aryl ester causes a specific hydroxyl group-containing aromatic compound and a (meth) acrylate anhydride to react, in the presence of a hindered phenol and a specific phosphite, and produces a (meth) acrylate aryl ester.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 6, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Fumi OBA, Naoshi MURATA, Hiroyuki MORI
  • Publication number: 20160244396
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acyrlate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Application
    Filed: October 24, 2014
    Publication date: August 25, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Ryo AIZAWA, Takeshi MATSUO, Naoshi MURATA, Hiroyuki MORI
  • Patent number: 9303003
    Abstract: Provided is glycidyl(meth)acrylate which is reduced in the content of impurities including chlorine. This process comprises reacting epichlorohydrin with an alkali metal (meth)acrylate in the presence of a catalyst to produce glycidyl(meth)acrylate, the process including a step in which the reaction is conducted while making a Bronsted acid present in the reaction system in an amount of 0.0001-0.08 mol per mol of the alkali metal (meth)acrylate.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 5, 2016
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventors: Naoshi Murata, Hiroyuki Mori
  • Publication number: 20150291544
    Abstract: Provided is glycidyl(meth)acrylate which is reduced in the content of impurities including chlorine. This process comprises reacting epichlorohydrin with an alkali metal (meth)acrylate in the presence of a catalyst to produce glycidyl(meth)acrylate, the process including a step in which the reaction is conducted while making a Bronsted acid present in the reaction system in an amount of 0.0001-0.08 mol per mol of the alkali metal (meth)acrylate.
    Type: Application
    Filed: March 11, 2014
    Publication date: October 15, 2015
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Naoshi Murata, Hiroyuki Mori
  • Publication number: 20150218080
    Abstract: The purpose of the present invention is to provide a method for producing an iron carbonate, whereby it becomes possible to prevent the generation of hydrogen during the production of the iron carbonate by the reaction of a carboxylic acid with metal iron. An embodiment of the present invention is a method for producing an iron carbonate by reacting metal iron with a carboxylic acid in a reaction solution, wherein a compound of trivalent iron is added to the reaction solution, the reaction solution contains a compound of trivalent iron at the time of the start of the reaction, the reaction solution contains a non-iron metal having a standard electrode potential of ?2.5 to 0.1 inclusive or a metal compound containing the metal, or the reaction solution contains at least one metal selected from the group consisting of Ag, Bi and Pd or a metal compound containing the metal.
    Type: Application
    Filed: August 2, 2013
    Publication date: August 6, 2015
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Patent number: 8697899
    Abstract: There is provided a method for producing iron methacrylate being inexpensive, and being high in activity and selectivity and good in solubility to a reaction liquid when being used in production of a hydroxyalkyl methacrylate as a catalyst. The method for producing iron methacrylate for production of a hydroxyalkyl methacrylate according to the present invention includes subjecting a mixture of a metallic iron having an oxygen atom content by XRF analysis of the surface thereof of 6% by mass or lower, and methacrylic acid to a heat treatment at 95° C. or higher and lower than 110° C. for 100 to 600 min. The method for producing a hydroxyalkyl methacrylate according to the present invention includes reacting an alkylene oxide with methacrylic acid to produce the hydroxyalkyl methacrylate, wherein iron methacrylate produced by the method according to the present invention is used as a catalyst.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: April 15, 2014
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Naoshi Murata, Kuniyoshi Ogura, Takeshi Matsuo, Akira Yoshioka
  • Publication number: 20130172591
    Abstract: There is provided a method for producing iron methacrylate being inexpensive, and being high in activity and selectivity and good in solubility to a reaction liquid when being used in production of a hydroxyalkyl methacrylate as a catalyst. The method for producing iron methacrylate for production of a hydroxyalkyl methacrylate according to the present invention includes subjecting a mixture of a metallic iron having an oxygen atom content by XRF analysis of the surface thereof of 6% by mass or lower, and methacrylic acid to a heat treatment at 95° C. or higher and lower than 110° C. for 100 to 600 min. The method for producing a hydroxyalkyl methacrylate according to the present invention includes reacting an alkylene oxide with methacrylic acid to produce the hydroxyalkyl methacrylate, wherein iron methacrylate produced by the method according to the present invention is used as a catalyst.
    Type: Application
    Filed: December 26, 2011
    Publication date: July 4, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Naoshi Murata, Kuniyoshi Ogura, Takeshi Matsuo, Akira Yoshioka
  • Patent number: 7468400
    Abstract: The glittering ink composition of the present invention contains a glass flake pigment, a water-soluble resin, a water-soluble organic solvent and water as essential ingredients. The content of the glass flake pigment is 0.01-40% by weight relative to the total amount of the ink composition. Moreover, the ink composition contains a synthetic resin emulsion as a binder component for fixing the glass flake pigment to a handwriting or a coated film in 0.01-40% by weight in solids relative to the total amount of the ink composition. The synthetic resin emulsion has an anionic property or a nonionic property and its minimum film forming temperature is not higher than 20° C.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 23, 2008
    Assignee: Sakura Color Products Corporation
    Inventors: Yasuyuki Yoshimura, Naoshi Murata, Yuki Yamamoto, Tomohiro Sawa
  • Patent number: 7241335
    Abstract: The invention provides an aqueous ink composition for ball-point pens excellent in both the lubricity for an aqueous ballpoint pen tip and the bleed resistance of writing.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: July 10, 2007
    Assignee: Sakura Color Products Corporation
    Inventors: Atsushi Ito, Naoshi Murata, Yumi Hirose
  • Patent number: 7208036
    Abstract: A central core type marking pen which has an ink storage portion of a central core and a pen tip connected thereto, wherein the central core contains a water-based pigment-containing ink composition which contains a thickening agent and exhibits, at 20° C., a viscosity of not less than 45 mPa·s and not greater than 12 mPa·s when a stress of 0.01 and a stress of 10 Pa are applied, respectively.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: April 24, 2007
    Assignee: Sakura Color Products Corporation
    Inventors: Hidetoshi Fukuo, Naoshi Murata, Makoto Hirotani, Tomohiro Sawa
  • Patent number: 7173077
    Abstract: An aqueous glittering ink composition whose viscosity ranges from about 1,000 to about 10,000 mPa·s, (measured by an ELD-type viscometer: 3° R 14 cone, 0.5 rpm, at the temperature of 20° C.) comprising a. aluminum powder pigments whose median diameter is not less than about 15 ?m compounded with oleic acid and/or stearic acid; b. synthetic resin emulsions selected from acryl based synthetic resin emulsions, styrene-acryl based synthetic resin emulsions and vinyl acetate based synthetic resin emulsions; c. polysaccharide selected from whelan gum, succinoglycan, and rhamsan gum; d. water-soluble organic solvent; and e. colored pigment.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: February 6, 2007
    Assignee: Sakura Color Products Corp.
    Inventors: Yasuyuki Yoshimura, Naoshi Murata, Yuki Yamamoto, Tomohiro Sawa
  • Patent number: 7125692
    Abstract: A process for producing a monomer for resists represented by the following general formula 1: wherein R1 represents hydrogen or an optionally substituted alkyl group; R2, R3 and R4 each independently represent hydrogen or a substituent; and X, Y and Z each independently represent a direct bond or an optionally substituted alkylene group with 1 to 3 chain members, the process comprising carrying out esterification or transesterification in the presence of a biocatalyst.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: October 24, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Eiji Satou, Makoto Kaneko, Naoshi Murata