Patents by Inventor Norihide Enomoto
Norihide Enomoto 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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Publication number: 20230399495Abstract: Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.Type: ApplicationFiled: August 30, 2023Publication date: December 14, 2023Inventors: Norihide Enomoto, Taichi Ogawa
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Publication number: 20230357460Abstract: Provided is a dip molding composition containing at least a nitrile rubber elastomer containing a carboxyl group and an amide group. In this dip molding composition, the elastomer contains 50% by weight or more, 78% by weight or less of a conjugated diene monomer-derived structural unit, 17% by weight or more, 35% by weight or less of an ethylenically unsaturated nitrile monomer-derived structural unit, 2.0% by weight or more, 8.0% by weight or less of an ethylenically unsaturated carboxylic acid monomer-derived structural unit, and 0.5% by weight or more, 5.0% by weight or less of an amide group-containing monomer-derived structural unit, and has an MEK-insoluble content of 50% by weight or more, 80% by weight or less.Type: ApplicationFiled: September 27, 2021Publication date: November 9, 2023Inventors: Norihide Enomoto, Atsushi Morinaga, Yamato Takeuchi, Hisanori Ota
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Patent number: 11780992Abstract: Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.Type: GrantFiled: June 25, 2019Date of Patent: October 10, 2023Assignee: Midori Anzen Co., Ltd.Inventors: Norihide Enomoto, Taichi Ogawa
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Patent number: 11713401Abstract: Provided is a dip molding composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20 to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1 to 10% by weight, and the butadiene-derived structural unit in an amount of 50 to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10 to 70% as determined by a specific measurement method.Type: GrantFiled: March 27, 2019Date of Patent: August 1, 2023Assignee: Midori Anzen Co., Ltd.Inventors: Norihide Enomoto, Taichi Ogawa, Kaname Shibata, Junji Shibasaki
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Publication number: 20230159686Abstract: Provided is a dip molding composition which contains at least: a carboxyl group-containing nitrile rubber elastomer; an epoxy crosslinking agent containing an epoxy compound that contains three or more glycidyl ether groups in one molecule and has a basic skeleton containing an alicyclic, aliphatic or aromatic hydrocarbon; and a pH modifier. In this dip molding composition, the elastomer contains 50% by weight or more, 78% by weight or less of a conjugated diene monomer-derived structural unit, 20% by weight or more, 30% by weight or less of an ethylenically unsaturated nitrile monomer-derived structural unit, and 3.5% by weight or more, 6% by weight or less of an ethylenically unsaturated carboxylic acid monomer-derived structural unit; the elastomer has an MEK-insoluble content of 60% by weight or more, 80% by weight or less; and the epoxy crosslinking agent has an MIBK/water distribution ratio of 50% or higher.Type: ApplicationFiled: March 30, 2021Publication date: May 25, 2023Inventors: Norihide Enomoto, Atsushi Morinaga, Hisanori Ota
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Publication number: 20230105669Abstract: Provided is a dip molding emulsion including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20% by weight to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1% by weight to 10% by weight, and the butadiene-derived structural unit in an amount of 50% by weight to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10% to 70% as determined by a specific measurement method.Type: ApplicationFiled: October 20, 2022Publication date: April 6, 2023Inventors: Norihide Enomoto, Taichi Ogawa, Kaname Shibata, Junji Shibasaki
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Publication number: 20230091367Abstract: Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2, [Expression 1] k1?+k2?+k3??9.3 N/mm??(1) [Expression 2] 0.55?k1?/(k1?+k2?+k3?)??(2) wherein k1? is a value obtained by dividing an equilibrium coefficient k1 by a thickness of a test piece, and k2? and k3? are values obtained by dividing viscous coefficients k2 and k3 by the thickness of the test piece, respectively.Type: ApplicationFiled: December 9, 2021Publication date: March 23, 2023Applicants: LG CHEM, LTD., MIDORI ANZEN CO., LTD.Inventors: Won Sang KWON, Seung Uk YEU, Jung Su HAN, Jung Eun KIM, Myung Su JANG, Norihide ENOMOTO, Sayaka HOSHINO, Shoya SATAKE, Yamato TAKEUCHI
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Patent number: 11584045Abstract: A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.Type: GrantFiled: August 18, 2022Date of Patent: February 21, 2023Assignee: Midori Anzen Co., Ltd.Inventors: Norihide Enomoto, Taichi Ogawa, Kaname Shibata, Junji Shibasaki
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Publication number: 20220402174Abstract: A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.Type: ApplicationFiled: August 18, 2022Publication date: December 22, 2022Inventors: Norihide Enomoto, Taichi Ogawa, Kaname Shibata, Junji Shibasaki
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Patent number: 11465318Abstract: A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.Type: GrantFiled: November 20, 2018Date of Patent: October 11, 2022Assignee: Midori Anzen Co., Ltd.Inventors: Norihide Enomoto, Taichi Ogawa, Kaname Shibata, Junji Shibasaki
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Patent number: 11179908Abstract: Provided is a method of producing a glove, the method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the step of adjusting the pH to be 9 or higher using an ammonium compound or an amine compound and leaving a glove emulsion composition to stand with stirring; (3) the dipping step of immersing the glove forming mold, to which the coagulant has thus adhered in the step (1), in the glove emulsion composition; (4) the gelling step of leaving the glove forming mold, to which the glove emulsion composition has thus adhered, to stand at a temperature for a period that satisfy specific conditions; (5) the leaching step of removing impurities from a cured film precursor thus formed on the glove forming mold; (6) the beading step of, after the leaching step, winding the cuff portion of the resulting glove; (7) the precuring step of heating and drying the cured film precursor that has been subjType: GrantFiled: June 16, 2017Date of Patent: November 23, 2021Assignee: Midori Anzen Co., Ltd.Inventors: Norihide Enomoto, Taichi Ogawa, Kenichi Yanagisawa, Nobuyuki Matsumoto
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Publication number: 20210221966Abstract: Provided is a dip molding composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit, and a butadiene-derived structural unit in a polymer main chain; an epoxy crosslinking agent; water; and a pH modifier, in which dip molding composition the elastomer contains the (meth)acrylonitrile-derived structural unit in an amount of 20 to 40% by weight, the unsaturated carboxylic acid-derived structural unit in an amount of 1 to 10% by weight, and the butadiene-derived structural unit in an amount of 50 to 75% by weight, and the epoxy crosslinking agent includes an epoxy crosslinking agent containing an epoxy compound having three or more epoxy groups in one molecule and has a dissolution rate in water of 10 to 70% as determined by a specific measurement method.Type: ApplicationFiled: March 27, 2019Publication date: July 22, 2021Inventors: Norihide Enomoto, Taichi Ogawa, Kaname Shibata, Junji Shibasaki
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Publication number: 20210179820Abstract: Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.Type: ApplicationFiled: June 25, 2019Publication date: June 17, 2021Inventors: Norihide Enomoto, Taichi Ogawa
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Publication number: 20210162636Abstract: A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.Type: ApplicationFiled: November 20, 2018Publication date: June 3, 2021Inventors: Norihide Enomoto, Taichi Ogawa, Kaname Shibata, Junji Shibasaki
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Patent number: 10954364Abstract: Provided is: A glove dipping composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain; a polycarbodiimide; zinc oxide and/or an aluminum complex; water; and at least one pH modifier selected from an ammonium compound and an amine compound, in which glove dipping composition the polycarbodiimide includes at least one polycarbodiimide containing a hydrophilic segment in its molecular structure and has an average polymerization degree of 3.8 or higher and a carbodiimide equivalent of 260 to 600; the polycarbodiimide is added in an amount of 0.1 to 4.0% by weight and zinc oxide and/or the aluminum complex is/are added in an amount of 0.1 to 5.6% by weight with respect to the total solid content of the glove dipping composition; and the glove dipping composition has a pH of 9.0 to 11.5.Type: GrantFiled: December 19, 2017Date of Patent: March 23, 2021Assignee: Midori Anzen Co., Ltd.Inventors: Norihide Enomoto, Taichi Ogawa
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Publication number: 20190174848Abstract: Provided is a method of producing a glove, the method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the step of adjusting the pH to be 9 or higher using an ammonium compound or an amine compound and leaving a glove emulsion composition to stand with stirring; (3) the dipping step of immersing the glove forming mold, to which the coagulant has thus adhered in the step (1), in the glove emulsion composition; (4) the gelling step of leaving the glove forming mold, to which the glove emulsion composition has thus adhered, to stand at a temperature for a period that satisfy specific conditions; (5) the leaching step of removing impurities from a cured film precursor thus formed on the glove forming mold; (6) the beading step of, after the leaching step, winding the cuff portion of the resulting glove; (7) the precuring step of heating and drying the cured film precursor that has been subjType: ApplicationFiled: June 16, 2017Publication date: June 13, 2019Inventors: Norihide Enomoto, Taichi Ogawa, Kenichi Yanagisawa, Nobuyuki Matsumoto
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Publication number: 20190161601Abstract: Provided is: A glove dipping composition including, at least: an elastomer that contains a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain; a polycarbodiimide; zinc oxide and/or an aluminum complex; water; and at least one pH modifier selected from an ammonium compound and an amine compound, in which glove dipping composition the polycarbodiimide includes at least one polycarbodiimide containing a hydrophilic segment in its molecular structure and has an average polymerization degree of 3.8 or higher and a carbodiimide equivalent of 260 to 600; the polycarbodiimide is added in an amount of 0.1 to 4.0% by weight and zinc oxide and/or the aluminum complex is/are added in an amount of 0.1 to 5.6% by weight with respect to the total solid content of the glove dipping composition; and the glove dipping composition has a pH of 9.0 to 11.5.Type: ApplicationFiled: December 19, 2017Publication date: May 30, 2019Inventors: Norihide Enomoto, Taichi Ogawa
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Patent number: 10093796Abstract: Provided is a resin composition having weather resistance and low-temperature impact resistance, which are the problems of a poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin, and sustaining the chemical resistance and room-temperature impact resistance of poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin. It is a resin composition containing a poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin and a polycarbonate resin, in which the poly(1,4-cyclohexylene dimethylene terephthalate) copolyester resin is contained at 60 to 95% by weight and the polycarbonate resin is contained at 5 to 40% by weight.Type: GrantFiled: October 31, 2012Date of Patent: October 9, 2018Assignee: MIDORI ANZEN CO., LTD.Inventors: Norihide Enomoto, Tatsuya Hasegawa, Taichi Ogawa
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Patent number: 9834665Abstract: An emulsion composition includes (1) a carboxylated acrylonitrile butadiene elastomer containing an acrylonitrile residue in an amount of 23 to 30 wt % and an unsaturated carboxylic acid residue in an amount of 3 to 8 wt %, and (2) a polyacrylonitrile butadiene elastomer containing an acrylonitrile residue in an amount of 20 to 50 wt % and having a weight average molecular weight (in terms of styrene) of 7,000 to 50,000. The weight ratio of the component (1)/the component (2) is from 70/30 to 90/10.Type: GrantFiled: February 27, 2015Date of Patent: December 5, 2017Assignee: KOSSAN SDN BHDInventors: Norihide Enomoto, Taichi Ogawa, Yusuke Sato, Lawrence Siau Tian Lim, Seek Ping Lee, Eng Long Ong
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Patent number: 9808039Abstract: The present invention reduces the minimum detectable volume of a piece of a glove in the detection using a metal detector. A glove made of a rubber or resin film which contains magnetic particles, wherein the quantity of the magnetic particles is 0.2 to less than 40 mass % relative to the whole of the film; and the magnetic particles comprise secondary particles formed by the agglomeration of primary particles.Type: GrantFiled: June 12, 2014Date of Patent: November 7, 2017Assignees: Midori Anzen Co. Ltd., Hartalega SDN BHDInventors: Norihide Enomoto, Taichi Ogawa, Daisuke Hirama, Kam Hon Kuan, Mun Leong Kuan, Eu Jin Kuan, Mei Ling Cheah, Bin Mat Satar Mohd Zaidi