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).
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Patent number: 10087159Abstract: 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: GrantFiled: August 4, 2015Date of Patent: October 2, 2018Assignee: Mitsubishi Chemical CorporationInventors: Naoshi Murata, Hiroyuki Mori
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Publication number: 20170305870Abstract: 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: ApplicationFiled: August 4, 2015Publication date: October 26, 2017Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Naoshi MURATA, Hiroyuki MORI
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Patent number: 9796652Abstract: 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: GrantFiled: May 27, 2015Date of Patent: October 24, 2017Assignee: Mitsubishi Chemical CorporationInventors: Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
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Patent number: 9783480Abstract: 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: GrantFiled: October 4, 2016Date of Patent: October 10, 2017Assignee: Mitsubishi Chemical CorporationInventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
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Patent number: 9771315Abstract: 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: GrantFiled: October 24, 2014Date of Patent: September 26, 2017Assignee: Mitsubishi Chemical CorporationInventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
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Publication number: 20170050912Abstract: 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: ApplicationFiled: May 27, 2015Publication date: February 23, 2017Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Takeshi MATSUO, Naoshi MURATA, Hiroyuki MORI
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Publication number: 20170022136Abstract: 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: ApplicationFiled: October 4, 2016Publication date: January 26, 2017Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
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Patent number: 9540308Abstract: 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: GrantFiled: August 2, 2013Date of Patent: January 10, 2017Assignee: MITSUBISHI RAYON CO., LTD.Inventors: Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
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Publication number: 20160289160Abstract: 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: ApplicationFiled: March 14, 2014Publication date: October 6, 2016Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Fumi OBA, Naoshi MURATA, Hiroyuki MORI
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Publication number: 20160244396Abstract: 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: ApplicationFiled: October 24, 2014Publication date: August 25, 2016Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Ryo AIZAWA, Takeshi MATSUO, Naoshi MURATA, Hiroyuki MORI
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Patent number: 9303003Abstract: 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: GrantFiled: March 11, 2014Date of Patent: April 5, 2016Assignee: MITSUBISHI RAYON CO., LTD.Inventors: Naoshi Murata, Hiroyuki Mori
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Publication number: 20150291544Abstract: 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: ApplicationFiled: March 11, 2014Publication date: October 15, 2015Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Naoshi Murata, Hiroyuki Mori
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Publication number: 20150218080Abstract: 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: ApplicationFiled: August 2, 2013Publication date: August 6, 2015Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
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Patent number: 8697899Abstract: 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: GrantFiled: December 26, 2011Date of Patent: April 15, 2014Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Naoshi Murata, Kuniyoshi Ogura, Takeshi Matsuo, Akira Yoshioka
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Publication number: 20130172591Abstract: 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: ApplicationFiled: December 26, 2011Publication date: July 4, 2013Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Naoshi Murata, Kuniyoshi Ogura, Takeshi Matsuo, Akira Yoshioka
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Patent number: 7468400Abstract: 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: GrantFiled: December 17, 2004Date of Patent: December 23, 2008Assignee: Sakura Color Products CorporationInventors: Yasuyuki Yoshimura, Naoshi Murata, Yuki Yamamoto, Tomohiro Sawa
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Patent number: 7241335Abstract: 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: GrantFiled: October 25, 2004Date of Patent: July 10, 2007Assignee: Sakura Color Products CorporationInventors: Atsushi Ito, Naoshi Murata, Yumi Hirose
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Patent number: 7208036Abstract: 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: GrantFiled: July 1, 2002Date of Patent: April 24, 2007Assignee: Sakura Color Products CorporationInventors: Hidetoshi Fukuo, Naoshi Murata, Makoto Hirotani, Tomohiro Sawa
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Patent number: 7173077Abstract: 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: GrantFiled: July 17, 2001Date of Patent: February 6, 2007Assignee: Sakura Color Products Corp.Inventors: Yasuyuki Yoshimura, Naoshi Murata, Yuki Yamamoto, Tomohiro Sawa
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Patent number: 7125692Abstract: 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: GrantFiled: September 11, 2002Date of Patent: October 24, 2006Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Eiji Satou, Makoto Kaneko, Naoshi Murata