Patents Assigned to Dai-Ichi Kogyo Seiyaku Co., Ltd.
  • Publication number: 20210009778
    Abstract: The present invention provides a recyclable flame-retardant expandable styrene-based resin composition that attains high flame retardancy and high heat stability with a small addition amount of a bromine-containing flame retardant. Specifically, the present invention provides a flame-retardant expandable styrene-based resin composition comprising a styrene-based resin (A), a flame retardant (B), fatty acid zinc (C), a heat stabilizer (D), and a foaming agent (F), wherein the flame retardant (B) comprises tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) (B1) and a bromine-containing flame retardant (B2) other than (B1).
    Type: Application
    Filed: July 31, 2018
    Publication date: January 14, 2021
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventor: Masahito NISHIURA
  • Patent number: 10870222
    Abstract: Provided is a release agent for vulcanized rubber molding, the release agent exhibiting good mold releasability between a mold and a rubber after vulcanization and capable of being easily removed after production. The release agent for vulcanized rubber molding contains a polyoxyalkylene glyceryl ether (A). The polyoxyalkylene glyceryl ether (A) contains 50% to 95% by mass of oxyethylene groups in 100% by mass of oxyalkylene groups. The polyoxyalkylene glyceryl ether (A) preferably has a number-average molecular weight of 2,000 to 20,000.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: December 22, 2020
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Shigeru Kigasawa, Toshikazu Nabeshima, Takuya Horie
  • Publication number: 20200388827
    Abstract: A negative electrode active material coating material capable of providing a secondary battery that is of low cost, has high capacity, and has excellent battery characteristics, a negative electrode, and a secondary battery are provided. The negative electrode active material coating material contains a negative electrode active material, a conductive agent, an aqueous binder, water, and a solvent, wherein the boiling point of the solvent is 200° C. or more and 300° C. or less, the water solubility of the solvent is 20 g/L or more, and the content of the solvent is 0.1% by mass or more and 10% by mass or less with respect to 100% by mass of the negative electrode active material coating material.
    Type: Application
    Filed: September 28, 2018
    Publication date: December 10, 2020
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Atsushi SANUKI, Yuka KAWANO, Shiho NAKAMURA
  • Publication number: 20200365843
    Abstract: Provided are a battery holder that enables efficient production of a battery pack of excellent quality, and a battery pack using the battery holder. A battery holder 10 includes at least a tubular body having a through-space (battery storage portion 10a) for storing a battery, such as a lithium-ion battery 20, inside. This tubular body is formed of a resin composition containing an inorganic filler.
    Type: Application
    Filed: January 15, 2019
    Publication date: November 19, 2020
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Akiyoshi NISHIKAWA, Tetsuya HIGASHIZAKI, Mana ISHINO, Takashi KITAGAWA, Toshikazu AKAO
  • Patent number: 10836911
    Abstract: In order to provide a filler composition for fabricating a high-performance filler achieving good productivity while preventing worsening of a working environment and production of a VOC and to provide a filler and a method for producing the filler, a filler composition of the present invention contains wet silica, a polyoxyethylene unsaturated fatty acid ester, and a sulfur-containing silane coupling agent.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 17, 2020
    Assignees: Dai-Ichi Kogyo Seiyaku Co., Ltd., Osaka Soda Co., Ltd.
    Inventors: Toshio Kagimasa, Nahoko Izaki, Shoukichi Nakamura, Tomoyuki Ichino, Ryota Fukitani
  • Publication number: 20200251720
    Abstract: Provided is a lithium-ion battery or lithium-ion capacitor electrode material that can compensate for the drawbacks of a hydrophobic active material, that can impart hydrophilicity to the hydrophobic active material, and that can exhibit excellent dispersibility without deteriorating electrode characteristics. Specifically provided is an electrode material for a lithium-ion battery or a lithium-ion capacitor, the electrode material comprising a composite powder in which a B component is supported or coated on a surface of an A component, the A component comprising a material capable of electrochemically occluding and releasing lithium ions, the B component being sulfur-modified cellulose, and the B component being contained in an amount of 0.01 mass % or more based on 100 mass % of the total amount of the A component and the B component.
    Type: Application
    Filed: July 23, 2018
    Publication date: August 6, 2020
    Applicants: DAI-ICHI KOGYO SEIYAKU CO., LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Takashi MUKAI, Yuta IKEUCHI, Masahiro YANAGIDA, Yasuteru SAITOU, Ayano SOFUE, Tetsuya HIGASHIZAKI
  • Patent number: 10717210
    Abstract: A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an amine compound having 4-8 active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an amine compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: July 21, 2020
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Takuya Horie, Toshikazu Nabeshima, Kazunori Nakagawa
  • Publication number: 20200199277
    Abstract: Provided is a copolymer that can be used as a dispersant having high dispersibility and high slump retention capability. A copolymer according to an embodiment is a water-soluble copolymer that contains, as constituent monomers, at least one monomer selected from a monomer (A) represented by formula (1) and a monomer (B) represented by formula (2), and at least one monomer (C) selected from an unsaturated carboxylic acid monomer (C-1) and an oxyethylene group-containing unsaturated carboxylic acid ester (C-2). The content of the monomer (C) is 20 mass % or more and 99 mass % or less.
    Type: Application
    Filed: September 15, 2018
    Publication date: June 25, 2020
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD
    Inventors: Masatake JOYABU, Kei SHIOHARA, Asako OGASAWARA, Takuro KIMURA, Chi TAO, Yuki TAKAMACHI
  • Publication number: 20200190221
    Abstract: A sulfated cellulose fiber having a cellulose I crystal structure is provided. A chemically modified cellulose fiber which has a cellulose I crystal and in which some hydroxyl groups of cellulose are substituted with a substituent represented by formula (1). An amount of the substituent introduced is 0.1 mmol to 3.0 mmol per 1 g of the chemically modified cellulose fiber, and an average degree of polymerization is 350 or more. (In formula (1), M represents a monovalent to trivalent cation.) In the production of the chemically modified cellulose fiber, a cellulose fiber is treated with sulfamic acid while maintaining a cellulose fiber shape to allow sulfamic acid and a cellulose fine fiber which is a constituent of the cellulose fiber to react with each other.
    Type: Application
    Filed: May 30, 2018
    Publication date: June 18, 2020
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Yuka KITANO, Masayuki HASHIMOTO
  • Patent number: 10633502
    Abstract: Provided is a flame-retardant foamable styrene resin composition having a high flame retardancy and thermal stability, and recyclable, with a small amount of a bromine-containing flame retardant added. A flame-retardant foamable styrene resin composition, containing (A) a styrene resin, (B) a bromine-containing organic compound, (C) zinc oxide, and (D) a foaming agent, in which an amount of (C) the zinc oxide added is less than 2 parts by weight per 100 parts by weight of (A) the styrene resin.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 28, 2020
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Masahito Nishiura, Hisanori Semori, Naomi Toyoshima
  • Patent number: 10562984
    Abstract: To provide an additive for crude oil recovery, used in secondary/tertiary recovery of crude oil, which has high heat resistance and high mechanical shear resistance, of which the viscous property does not degrade even under high-temperature and high-shear conditions; has high pseudoplastic flowability and therefore has a light transfer workload; and is a naturally-derived one and is therefore highly biodegradable and has least adverse impact on environment. An additive for crude oil recovery, which contains cellulose fibers having a number-average fiber diameter of from 2 to 500 nm and a fiber aspect ratio of 50 or more and having a cellulose I-type crystal structure, and, in the cellulose fibers, a hydroxyl group on a surface of the cellulose fibers is preferably chemically modified.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: February 18, 2020
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Yousuke Goi, Mineo Sabi, Kazuhito Jinno, Koji Noda
  • Patent number: 10553872
    Abstract: A binder for an electrode of a lithium secondary battery contains a water dispersion of a polyurethane. The polyurethane has been formed of (A) a polyisocyanate, (B) a compound having two or more active hydrogen groups, (C) a compound having one or more active hydrogen groups and a hydrophilic group, and (D) a chain extending agent. The (B) compound having two or more active hydrogen groups contains an olefinic polyol and/or a carbonate diol having a carbon number between carbonate bond chains of less than 6. The binder has high adhesiveness to a collector, does not cause release in press molding, has high flexibility, and is excellent in bindability and resistance to an electrolytic solution.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: February 4, 2020
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Katsuo Takahashi, Shuichi Ito, Takeshi Miyamura
  • Publication number: 20200008454
    Abstract: To provide a powder emulsifying agent composition having such a low bulk specific gravity that it is suitably stored and transported, having high water dispersibility, and being produced at high efficiency (in particular, drying efficiency), a method for producing a powder emulsifying agent composition, and a food including a powder emulsifying agent composition. A powder emulsifying agent composition includes a saccharide (A), an ester (B) that is at least one of a sucrose fatty acid ester (B1) or a glycerin fatty acid ester (B2), and an inorganic salt (C).
    Type: Application
    Filed: February 9, 2018
    Publication date: January 9, 2020
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Hiroshi HATANO, Keisuke KUSUI
  • Publication number: 20190375879
    Abstract: The present application discloses a polyol composition for a polyurethane resin and a polyurethane-resin-formable composition that are capable of forming a polyurethane resin that exhibits a low resin viscosity during shaping, but has a high glass transition temperature, and a composite material. A polyol composition for a polyurethane resin includes an esterified compound (A) having an average esterification degree of 0.5 to 2.5, wherein the esterified compound (A) includes, as constituent components, a triol (a1) and a fatty acid (a2) having 2 to 18 carbon atoms.
    Type: Application
    Filed: February 6, 2018
    Publication date: December 12, 2019
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Kei OIKAWA, Masaharu HIROSE, Takeshi MIYAMURA
  • Publication number: 20190367662
    Abstract: Polyurethane resin compositions are used to seal objects such as electrical and electronic components in order to provide protection from condensation and contamination. Such polyurethane resin compositions are often used in high-temperature environments. Thus, a polyurethane resin composition having high heat resistance is provided. The polyurethane resin composition is obtained by reacting a hydroxyl-group-containing compound (A) with an isocyanate-group-containing compound (B) and contains an antioxidant (C) having an alkylthio group.
    Type: Application
    Filed: February 5, 2018
    Publication date: December 5, 2019
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Azusa KANAI, Mana ISHINO
  • Patent number: 10457754
    Abstract: The present invention relates to an aqueous resin dispersion, obtained by subjecting a polymerizable compound (C) containing a compound (C1) having a carbon-carbon unsaturated bond to an emulsion polymerization in the presence of a surfactant (A) and a surfactant (B) free from a radical-polymerizable substituent.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 29, 2019
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Asako Ogasawara, Toshio Kagimasa, Masatake Joyabu
  • Publication number: 20190312258
    Abstract: A negative electrode of a nonaqueous electrolyte secondary battery, which is provided with a collector and a negative electrode active material layer that is formed on the collector, and which is characterized in that: the negative electrode active material layer contains a carbon-based negative electrode active material, a silicon-based negative electrode active material, a conductive agent and a predetermined carboxy methylcellulose or a salt thereof; the content of the carboxy methylcellulose or a salt thereof is from 4% by mass to 15% by mass (inclusive) relative to the total mass of the negative electrode active material layer; and the content of the silicon-based negative electrode active material relative to the total content of the carbon-based negative electrode active material and the silicon-based negative electrode active material is from 3% by mass to 19% by mass (inclusive).
    Type: Application
    Filed: October 17, 2017
    Publication date: October 10, 2019
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Shiho NAKAMURA, Atsushi SANUKI
  • Publication number: 20190275709
    Abstract: A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an amine compound having 4-8 active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an amine compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.
    Type: Application
    Filed: April 26, 2017
    Publication date: September 12, 2019
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Takuya HORIE, Toshikazu NABESHIMA, Kazunori NAKAGAWA
  • Patent number: 10400195
    Abstract: A gel composition having high adhesion, high whitening resistance, and high high-temperature stability is provided. The gel composition includes a polyoxyalkylene alkyl ether (A) represented by general formula (1) and water (B). R—O—(PO)m-(EO)n—H??(1) In the formula (1), R is a linear alkyl group having 12 to 22 carbon atoms, PO represents an oxypropylene group, EO represents an oxyethylene group, m and n each represent an average number of moles added, m is a number of 1 to 20, and n is a number of 1 to 80. PO and EO are added in a configuration of block addition.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 3, 2019
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Natsu Fukuda, Masatake Joyabu
  • Publication number: 20190249054
    Abstract: Provided is a freezing inhibitor which has excellent freezing inhibitory effect and excellent safety, while being able to be mass-produced. According to the present invention a freezing inhibitor which contains water-insoluble fibers that are derived from at least one substance, selected from the group consisting of celluloses, chitins and chitosans is used.
    Type: Application
    Filed: August 29, 2017
    Publication date: August 15, 2019
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Takazumi TAWA, Masayuki HASHIMOTO