Patents Assigned to Zeon Corporation
  • Publication number: 20210179740
    Abstract: A method produces a hydrogenated nitrile rubber having an iodine value of 120 or less, the method having a first coagulation step of adding a halogen atom-free metal salt as a coagulant to a nitrile rubber latex to form a nitrile rubber coagulum; a solution preparation step of dissolving the nitrile rubber coagulum in an organic solvent to prepare a nitrile rubber solution; a hydrogenation step of subjecting the nitrile rubber solution to a hydrogenation reaction to afford a hydrogenated nitrile rubber solution; and a second coagulation step of adding a divalent metal salt as a coagulant to the hydrogenated nitrile rubber solution to form a hydrogenated nitrile rubber coagulum.
    Type: Application
    Filed: November 2, 2018
    Publication date: June 17, 2021
    Applicant: ZEON CORPORATION
    Inventor: Akito NAKAI
  • Publication number: 20210179801
    Abstract: A foam containing a nitrile group-containing conjugated diene copolymer and a urethane polymer, wherein relative to 100 wt % of the sum of the nitrile group-containing conjugated diene copolymer and the urethane polymer, the nitrile group-containing conjugated diene copolymer is present in an amount of less than 90 wt % and the urethane polymer is present in an amount of more than 10 wt %, the nitrile group-containing conjugated diene copolymer contains ethylenically unsaturated nitrile monomer units in an amount of more than 31 wt %, the foam has a density of 0.08 to 0.30 g/cm3, and in observation of an arbitrary cross section of the foam, air bubble cross sections present in the cross section have an average diameter of 350 ?m or less, and the number of air bubble cross sections with a diameter of 0.6 mm or more present in the cross section is 0.062 per mm2 or less.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 17, 2021
    Applicant: ZEON CORPORATION
    Inventors: Tomoya TANIYAMA, Takashi IGA
  • Patent number: 11034799
    Abstract: A method for producing a polymer latex, including an emulsification step of mixing a polymer solution obtained by dissolution of synthetic polyisoprene and/or a styrene-isoprene-styrene block copolymer in an organic solvent, with an aqueous solution including 0.1 to 30 parts by weight of a rosinate based on 100 parts by weight in total of the synthetic polyisoprene and the styrene-isoprene-styrene block copolymer, and emulsifying the resultant in water to thereby obtain an emulsified liquid, a solvent removal step of removing the organic solvent in the emulsified liquid, and a concentration step of concentrating the emulsified liquid from which the organic solvent is removed, and also adjusting the content rate of the rosinate in the emulsified liquid after concentration, in the range of 0.1 to 3 parts by weight based on 100 parts by weight in total of the synthetic polyisoprene and the styrene-isoprene-styrene block copolymer in the emulsified liquid.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 15, 2021
    Assignee: ZEON CORPORATION
    Inventors: Masatoshi Ishiba, Shunjin Aihara, Junji Kodemura
  • Patent number: 11034792
    Abstract: A liquid cyclopentene ring-opened polymer having a weight average molecular weight (Mw) of 1,000 to 50,000 and a cis double content of 55% or more in repeating units.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: June 15, 2021
    Assignee: ZEON CORPORATION
    Inventor: Shingo Okuno
  • Patent number: 11038158
    Abstract: The present invention relates to a method for manufacturing a binder composition for a lithium-ion secondary battery electrode. The method comprises a step of dissolving a polymer having a melting point in a range of 50° C. to 150° C. in a monomer and obtaining a monomer solution in which the polymer is dissolved in the monomer; and a step of obtaining a composite polymer particle by subjecting the monomer solution to suspension polymerization or emulsion polymerization in an aqueous medium. The binder composition contains the composite polymer particle.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 15, 2021
    Assignee: ZEON CORPORATION
    Inventors: Azusa Masuda, Hiroki Oguro, Kouichirou Maeda
  • Publication number: 20210171671
    Abstract: A cross-linkable nitrile rubber composition that includes a nitrile group-containing copolymer rubber (A), silica (B1), clay (B2), calcium carbonate (B3), and a polyamine-based cross-linking agent (C). A total amount of the silica (B1), the clay (B2), and the calcium carbonate (B3) is 150 to 200 parts by weight with respect to 100 parts by weight of the nitrile group-containing copolymer rubber (A), a content ratio of the silica (B1) is greater than 0 wt % and 50 wt % or less with respect to the total amount of the silica (B1), the clay (B2), and the calcium carbonate (B3), and a content ratio of the clay (B2) and the calcium carbonate (B3) is 30:70 to 90:10 in a weight ratio of “clay (B2):calcium carbonate (B3)”.
    Type: Application
    Filed: June 21, 2019
    Publication date: June 10, 2021
    Applicant: ZEON CORPORATION
    Inventor: Yoshio FUKUMINE
  • Publication number: 20210167389
    Abstract: Provided are a binder composition for an all-solid-state secondary battery with which it is possible to obtain an all-solid-state secondary battery that has good battery characteristics and for which processability during all-solid-state secondary battery production is excellent, a slurry composition for an all-solid-state secondary battery that contains this binder composition for an all-solid-state secondary battery, a functional layer for an all-solid-state secondary battery that is formed from this slurry composition for an all-solid-state secondary battery, and an all-solid-state secondary battery that includes this functional layer for an all-solid-state secondary battery. The binder composition for an all-solid-state secondary battery contains a polymer, an unsaturated acid metal salt monomer, and a solvent. The unsaturated acid metal salt monomer includes a divalent metal.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 3, 2021
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Publication number: 20210162547
    Abstract: A method for producing a cut film comprising cutting a pre-cut film including a resin layer with a laser beam having a wavelength of 400 nm or longer and 850 nm or shorter to obtain a cut film, wherein the pre-cut film has an absorbance, at a wavelength of the laser beam, of 0.10 or less.
    Type: Application
    Filed: August 8, 2019
    Publication date: June 3, 2021
    Applicant: ZEON CORPORATION
    Inventor: Satoshi YAMADA
  • Publication number: 20210163380
    Abstract: Provided is a method of producing piperylene from a hydrocarbon mixture derived from a petroleum fraction having a carbon number of 5. The hydrocarbon mixture has a piperylene proportional content of not less than 60 mass % and not more than 80 mass % and has a cyclic hydrocarbon proportional content of not less than 20 mass % and not more than 40 mass %. The method of producing piperylene includes a membrane separation step of performing membrane separation of the hydrocarbon mixture using a zeolite membrane to obtain a separated product in which piperylene is enriched.
    Type: Application
    Filed: August 29, 2019
    Publication date: June 3, 2021
    Applicant: ZEON CORPORATION
    Inventor: Takahiro SUZUKI
  • Publication number: 20210167628
    Abstract: Provided is a power wiring device that can suppress reduction of electricity generation efficiency due to the external environment. The power wiring device includes: a plurality of circuit modules each including a first connector and a second connector; and a wiring member including a third connector that is mechanically and electrically attachable to and detachable from the first connector and a fourth connector that is mechanically and electrically attachable to and detachable from the second connector, and in which the third connector and the fourth connector are electrically connected to one another. The plurality of circuit modules includes: an energy harvesting module as a circuit module that can output, from the first connector and the second connector, electric power obtained through energy harvesting; and a load module as a circuit module that can consume electric power input from the first connector and electric power input from the second connector.
    Type: Application
    Filed: November 8, 2018
    Publication date: June 3, 2021
    Applicant: ZEON CORPORATION
    Inventors: Masayoshi YOSHIDA, Kiyoshige KOJIMA
  • Patent number: 11015049
    Abstract: A vinyl chloride resin composition with which the surface stickiness of a vinyl chloride resin molded product can be suppressed is provided. A vinyl chloride resin composition comprises: (a) a vinyl chloride resin; (b) a plasticizer; and (c) a modified silicone oil, wherein (c) the modified silicone oil is a modified silicone oil that is at least one of: hydrogen-modified; phenyl-modified; alkyl/aralkyl-modified; and fatty acid amide-modified.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: May 25, 2021
    Assignee: ZEON CORPORATION
    Inventor: Satoshi Iwabuchi
  • Patent number: 11014270
    Abstract: A method for producing a glove includes a step of forming a dip-molded layer by dip-molding a latex composition containing a latex of a carboxyl group-containing conjugated diene rubber (A) that does not have an isoprene-derived monomer unit, and a metal compound (B) including a divalent or higher metal, and a step of irradiating the dip-molded layer with radiation.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 25, 2021
    Assignee: ZEON CORPORATION
    Inventors: Misa Yamamoto, Masaru Kitagawa
  • Patent number: 11013281
    Abstract: A method for producing a glove, including a step of forming a dip-molded layer by dip-molding a latex composition containing a latex of a carboxyl group-containing conjugated diene rubber (A) and a metal compound (B) including a divalent or higher metal, and is substantially free from sulfur and/or a sulfur-containing compound as a cross-linking agent, and a step of irradiating the dip-molded layer with radiation.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 25, 2021
    Assignee: ZEON CORPORATION
    Inventors: Masaru Kitagawa, Misa Yamamoto
  • Publication number: 20210151983
    Abstract: Disclosed is a connection apparatus capable of supplying power supplied from a power supply module to a load. The connection apparatus includes: a connection unit connectable with the power supply module; a light emission element; and a light emission controller for controlling the light emission element, wherein the light emission controller causes, upon detection of a connection of the power supply module to the connection unit, the light emission element to emit light for a first predetermined time.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 20, 2021
    Applicant: ZEON CORPORATION
    Inventors: Naomi SHIGA, Masayoshi YOSHIDA
  • Patent number: 11011754
    Abstract: Provided is a binder composition for a non-aqueous secondary battery functional layer that enables production of a composition for a non-aqueous secondary battery functional layer that has excellent stability and can cause a non-aqueous secondary battery to display excellent cycle characteristics. The binder composition contains a water-soluble polymer and water. The water-soluble polymer has a contact angle with water of at least 40° and not more than 80° and has a degree of swelling in electrolyte solution of more than a factor of 1.0 and not more than a factor of 3.0.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 18, 2021
    Assignee: ZEON CORPORATION
    Inventor: Junichi Asano
  • Patent number: 11011794
    Abstract: Provided is a composition for a non-aqueous secondary battery functional layer capable of forming a functional layer that can provide a battery member such as an electrode or a separator with both excellent blocking resistance and excellent process adhesiveness. The composition for a functional layer contains a particulate polymer A. The particulate polymer A has a core-shell structure including a core portion and a shell portion that at least partially covers an outer surface of the core portion. The core portion is formed from a polymer having a glass-transition temperature of higher than 25° C. and lower than 80° C. The shell portion is formed from a polymer having a glass-transition temperature of ?80° C. to 25° C. The proportion constituted by the core portion among the total of the core portion and the shell portion is 30 mass % to 80 mass %.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 18, 2021
    Assignee: ZEON CORPORATION
    Inventor: Keiichiro Tanaka
  • Patent number: 11008443
    Abstract: A latex of a carboxyl group-containing nitrile rubber contains an ?,?-ethylenically unsaturated nitrile monomer unit in a content of 8 to 60 wt % and having an iodine value of 120 or less, wherein the total content of potassium and sodium contained in the latex is 2,300 to 10,000 ppm by weight with respect to the whole latex.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 18, 2021
    Assignee: ZEON CORPORATION
    Inventor: Sayaka Inoue
  • Patent number: 11008450
    Abstract: Provided is a vinyl chloride resin composition that enables production of a vinyl chloride resin molded product that has excellent surface lubricity and can inhibit formation of voids in a foamed polyurethane molded product laminated therewith. The vinyl chloride resin composition contains a vinyl chloride resin, a plasticizer, and ether-modified silicone oil.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: May 18, 2021
    Assignee: ZEON CORPORATION
    Inventor: Shota Nishimura
  • Patent number: 11002897
    Abstract: A polarizing plate including a polarizer, and a protective film layer formed on at least one surface of the polarizer, wherein the protective film layer is formed of a protective resin having a volatile component content of 0.03% by weight or less, and a thickness d of the protective film layer satisfies the formula (1): 0.01 ?m?d?0.5 ?m (1).
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 11, 2021
    Assignee: ZEON CORPORATION
    Inventor: Hiromu Mashima
  • Publication number: 20210135225
    Abstract: Provided is a binder composition for a non-aqueous secondary battery with which it is possible to form a slurry composition for a non-aqueous secondary battery functional layer having excellent viscosity stability and a functional layer for a non-aqueous secondary battery having excellent pressability. The binder composition for a non-aqueous secondary battery contains water and a particulate polymer formed by a polymer including a block region composed of an aromatic vinyl monomer unit. The particulate polymer has a surface acid content of not less than 0.05 mmol/g and not more than 0.9 mmol/g.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 6, 2021
    Applicant: ZEON CORPORATION
    Inventors: Norikazu YAMAMOTO, Shunjin AIHARA