Patents Assigned to Zeon Corporation
  • METHOD OF PRODUCING MONOFLUOROMETHANE
    Publication number: 20230159415
    Abstract: Provided is a production method that enables production of monofluoromethane by a gas phase flow method without using a catalyst. The method of producing monofluoromethane includes causing electrical discharge of a feedstock gas containing a fluorine-containing inorganic compound, a compound represented by formula 1: CH3—R (R is a hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, or an organic group other than a hydrocarbon group), and an inert gas, while in a continuous flow state, and then causing continuous release to outside of an electrical discharge zone.
    Type: Application
    Filed: May 19, 2021
    Publication date: May 25, 2023
    Applicant: ZEON CORPORATION
    Inventor: Go MATSUURA
  • ACRYLIC RUBBER EXCELLENT IN STORAGE STABILITY
    Publication number: 20230159682
    Abstract: An acrylic rubber, including: 50 to 99.9% by weight of a bond unit derived from at least one (meth) acrylic acid ester selected from the group consisting of (meth) acrylic acid alkyl ester and (meth) acrylic acid alkoxyalkyl ester; 0.1 to 20% by weight of a bond unit derived from a monomer containing a reactive group; and 0 to 30% by weight of a bond unit derived from other monomer, wherein the acrylic rubber contains a phenolic anti-aging agent represented by a general formula (1), (R1 represents an isopropyl group or a t-butyl group, and R2 represents an alkyl group having 1 to 12 carbon atoms), and the weight average molecular weight (Mw) of the acrylic rubber is in the range of 100,000 to 5,000,000.
    Type: Application
    Filed: June 5, 2020
    Publication date: May 25, 2023
    Applicant: ZEON CORPORATION
    Inventors: Hirofumi MASUDA, Takafumi KAWANAKA
  • Resin sheet and method of producing resin sheet
    Patent number: 11654601
    Abstract: Provided is a resin sheet including a plurality of aspheric sections having low variation of thickness precision and high shape precision. A method of producing a resin sheet includes hot press forming a thermoplastic resin film formed using a thermoplastic resin so as to produce a resin sheet including a plurality of aspheric sections that are separated from one another. The hot press forming is performed by increasing the pressing pressure to a final pressing pressure with an average pressure increase rate of 0.1 MPa/s or less at a pressing temperature that is at least 40° C. higher than the glass-transition temperature of the thermoplastic resin.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 23, 2023
    Assignee: ZEON CORPORATION
    Inventors: Taichi Sawaguchi, Hironari Sudeji
  • COMPOSITION FOR ELECTROCHEMICAL DEVICE FUNCTIONAL LAYER, FUNCTIONAL LAYER FOR ELECTROCHEMICAL DEVICE, LAMINATE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE
    Publication number: 20230155131
    Abstract: A composition for an electrochemical device functional layer contains non-conductive heat-resistant particles and a particulate polymer having a particle diameter distribution value (Dv/Dn) of not less than 1.00 and less than 1.10.
    Type: Application
    Filed: March 12, 2021
    Publication date: May 18, 2023
    Applicant: ZEON CORPORATION
    Inventors: Kazuki TAKAGI, Takuya KANEDA
  • LATEX COMPOSITION FOR DIP MOLDING AND DIP-MOLDED ARTICLE
    Publication number: 20230151193
    Abstract: A latex composition for dip molding including a latex of a conjugated diene polymer (A) having a methyl ethyl ketone insolubles content of 50% by weight or less, and a latex of a polymer (B) having a methyl ethyl ketone insolubles content of 55% by weight or more.
    Type: Application
    Filed: May 20, 2021
    Publication date: May 18, 2023
    Applicant: ZEON CORPORATION
    Inventors: Kentaro HAYASAKA, Tomoya TANIYAMA
  • Resin composition and medical drug container using same
    Patent number: 11649348
    Abstract: A medicine container which absorbs very little protein over time is manufactured using a resin composition including 50 to 99 wt % of a norbornene-based polymer, and 1 to 50 wt % of a hydrogenated styrene-based thermoplastic elastomer, a content of a low-molecular-weight component having a weight average molecular weight of 1000 or less in the resin composition being 3 wt % or less.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: May 16, 2023
    Assignee: ZEON CORPORATION
    Inventors: Taichi Sawaguchi, Satoshi Adachi, Shinsuke Miyazawa, Nozomi Yabuki
  • Gas seal member for high-pressure hydrogen device, and high-pressure hydrogen device
    Patent number: 11649387
    Abstract: Disclosed is a gas seal member for high-pressure hydrogen device with sufficiently reduced occurrence of both swelling destruction and blister destruction. The gas seal member is formed of a cross-linked product of an elastomer composition which comprises an elastomer and fibrous carbon nanostructures, wherein a hydrogen diffusion coefficient D1 of a cross-linked product of an elastomer component including the elastomer and a hydrogen diffusion coefficient D2 of the cross-linked product of the elastomer composition satisfy the relationship 0.7<D2/D1<1.0.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: May 16, 2023
    Assignees: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, ZEON CORPORATION
    Inventors: Shin Nishimura, Yoshihisa Takeyama
  • Nonaqueous electrolyte battery
    Patent number: 11649369
    Abstract: Disclosed is a nonaqueous electrolyte battery using an aqueous sealant composition. The aqueous sealant composition comprises an aqueous dispersion in an amount of 70 mass % or more and 97 mass % or less by mass of solid content, wherein the aqueous dispersion comprises an olefinic polymer as a main component, and a water-soluble polymer in an amount of 3 mass % or more and 30 mass % or less by mass of solid content. The aqueous dispersion comprises an olefinic polymer as a main component. The olefinic polymer is a modified olefinic polymer. The modified olefinic polymer is a partial copolymer of a polymer selected from a group consisting of polyethylene, polypropylene, polybutene and ethylene-propylene polymers, and a polymerizable unsaturated organic acid selected from a group consisting of maleic anhydride, acrylic acid, methacrylic acid and esters thereof.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: May 16, 2023
    Assignee: ZEON CORPORATION
    Inventor: Kouichirou Maeda
  • Scalable nanotube fabrics and methods for making same
    Patent number: 11643763
    Abstract: The present disclosure provides scalable nanotube fabrics and methods for controlling or otherwise adjusting the nanotube length distribution of a nanotube application solution in order to realize scalable nanotube fabrics. In one aspect of the present disclosure, one or more filtering operations are used to remove relatively long nanotube elements from a nanotube solution until nanotube length distribution of the nanotube solution conforms to a preselected or desired nanotube length distribution profile. In another aspect of the present disclosure, a sono-chemical cutting process is used to break up relatively long nanotube elements within a nanotube application solution into relatively short nanotube elements to realize a pre-selected or desired nanotube length distribution profile.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: May 9, 2023
    Assignee: ZEON CORPORATION
    Inventors: Rahul Sen, Billy Smith, J. Thomas Kocab, Ramesh Sivarajan, Peter Sites, Thomas Rueckes, David A. Roberts
  • Polymer, positive resist composition, and method of forming resist pattern
    Patent number: 11644752
    Abstract: Provided is a polymer that when used as a main chain scission-type positive resist, can sufficiently inhibit resist pattern collapse, can favorably form a clear resist pattern, and can also improve sensitivity. The polymer includes a monomer unit (A) represented by general formula (I), shown below, and a monomer unit (B) represented by general formula (II), shown below. [In formula (I), R1 is an organic group including not fewer than 5 and not more than 7 fluorine atoms. In formula (II), R2 is a hydrogen atom, a fluorine atom, an unsubstituted alkyl group, or a fluorine atom-substituted alkyl group, R3 is a hydrogen atom, an unsubstituted alkyl group, or a fluorine atom-substituted alkyl group, p and q are each an integer of not less than 0 and not more than 5, and p+q=5.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 9, 2023
    Assignee: ZEON CORPORATION
    Inventor: Manabu Hoshino
  • Polymer composition containing diarylamine-based compound
    Patent number: 11643522
    Abstract: The present invention provides a polymer composition comprising a polymer and an antioxidant comprising a diarylamine-based compound represented by General Formula (1): where, in General Formula (1), A1 and A2 each independently represent a C6 to C18 arylene group which may have a substituent, and A3 and A4 each independently represent an organic group having a cyclic imide structure which may have a substituent.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: May 9, 2023
    Assignee: ZEON CORPORATION
    Inventors: Mitsuru Sugawara, Satoshi Kiriki, Kazuhiro Ejiri
  • Method of producing surface-treated carbon nanostructures
    Patent number: 11643328
    Abstract: Disclosed is a method of producing surface-treated carbon nanostructures which comprises: a depressurization step wherein a carbon nanostructure-containing liquid which comprises carbon nanostructures and a dispersion medium is depressurized; and a surface treatment step wherein an oxidizing agent is added in the carbon nanostructure-containing liquid after or during the depressurization step so that the carbon nanostructures have a surface oxygen atom concentration of 7.0 at % or more. The carbon nanostructures preferably comprise carbon nanotubes.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: May 9, 2023
    Assignee: ZEON CORPORATION
    Inventor: Osamu Kawakami
  • COMPOSITE PARTICLES FOR ELECTROCHEMICAL ELEMENT, PRODUCTION METHOD, ELECTRODE FOR ELECTROCHEMICAL ELEMENT, AND ELECTROCHEMICAL ELEMENT
    Publication number: 20230138078
    Abstract: A composite particle for an electrochemical element including an electrode active material and a granular polymer, wherein the granular polymer is composed of a graft polymer, the graft polymer has a molecular structure which includes a specific backbone portion and a graft portion bonded to the backbone portion, the graft portion being a hydrophilic graft chain, a content ratio of the graft portion in the graft polymer is 1 part by weight or more and 40 parts by weight or less relative to 100 parts by weight of the backbone portion, and an angle of repose of the composite particle is 20° to 40°. Also provided are a producing method of the composite particle, an electrode for an electrochemical element including the composite particle, and an electrochemical element including the same.
    Type: Application
    Filed: February 19, 2021
    Publication date: May 4, 2023
    Applicant: ZEON CORPORATION
    Inventor: Yasuhiro ISSHIKI
  • BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY
    Publication number: 20230133447
    Abstract: Provided is a binder composition that can result in high peel strength in an electrode and excellent cycle characteristics in a secondary battery. A binder composition for a non-aqueous secondary battery contains a water-soluble polymer (A) and a water-soluble polymer (B). The water-soluble polymer (A) is formed of one or more types of units selected from the group consisting of unsaturated carboxylic acid monomer units, unsaturated carboxylic acid amide monomer units, unsaturated carboxylic acid ester monomer units, hydroxyl group-containing vinyl monomer units, and vinyl alcohol structural units, and includes a predetermined amount of unsaturated carboxylic acid monomer units. The water-soluble polymer (B) is formed of one or more types of ethylenically unsaturated monomer units, and includes a predetermined amount of sulfo group-containing aromatic vinyl monomer units.
    Type: Application
    Filed: March 22, 2021
    Publication date: May 4, 2023
    Applicant: ZEON CORPORATION
    Inventors: Hiroki OSHIMA, Yusuke ADACHI
  • ORGANIC PARTICLE DISPERSION LIQUID FOR SECONDARY BATTERY FUNCTIONAL LAYER, COMPOSITION FOR SECONDARY BATTERY FUNCTIONAL LAYER, BATTERY MEMBER FOR SECONDARY BATTERY, AND SECONDARY BATTERY
    Publication number: 20230138378
    Abstract: An organic particle dispersion liquid for a secondary battery functional layer contains a solvent and organic particles including a polyfunctional monomer unit in a proportion of 50 mass % or more. In this organic particle dispersion liquid, the polymerization initiator decomposition product content is 50 ppm or less, and the total polymerization initiator decomposition product and unreacted polyfunctional monomer content is 500 ppm or less.
    Type: Application
    Filed: March 22, 2021
    Publication date: May 4, 2023
    Applicant: ZEON CORPORATION
    Inventor: Yutaka MARUHASHI
  • RESIN COMPOSITION AND METHOD OF PRODUCING SAME, SHAPING MATERIAL, PACKAGING CONTAINER, AND SEMICONDUCTOR CONTAINER
    Publication number: 20230136721
    Abstract: A resin composition contains: a resin including one or more among a norbornene-based polymer, a monocyclic cycloolefin-based polymer, a cyclic conjugated diene-based polymer, a vinyl alicyclic hydrocarbon polymer, and hydrogenated products thereof; and a conductive fibrous filler having an aspect ratio of not less than 5 and not more than 500.
    Type: Application
    Filed: August 10, 2021
    Publication date: May 4, 2023
    Applicant: ZEON CORPORATION
    Inventor: Shinsuke MIYAZAWA
  • Nitrile group-containing copolymer rubber
    Patent number: 11639408
    Abstract: A nitrile group-containing copolymer rubber including 10 to 60 wt % of an ?,?-ethylenically unsaturated nitrile monomer unit and 1 to 60 wt % of an ?,?-ethylenically unsaturated dicarboxylic acid monoester monomer unit, and having an iodine value of 120 or less, wherein a processability index Ipro (Ipro=CC×SA) is 0.0030 or less, where the processability index Ipro is the product of the carboxyl group content CC, which is the number of moles of carboxyl groups per 100 g of nitrile group-containing copolymer rubber, and the absorbance area SA of a carboxylic anhydride group determined by infrared spectroscopy.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: May 2, 2023
    Assignee: ZEON CORPORATION
    Inventor: Atsuhiro Shiono
  • CONDUCTIVE MATERIAL DISPERSION LIQUID, SLURRY FOR SECONDARY BATTERY POSITIVE ELECTRODE, POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY
    Publication number: 20230129636
    Abstract: Provided is a conductive material dispersion liquid that can reduce internal resistance of a secondary battery while also ensuring good high-temperature storage characteristics of the secondary battery. The conductive material dispersion liquid contains a carbon material, a dispersant, and a dispersion medium. An HSP distance (Rd) of Hansen solubility parameters (HSPc) of the carbon material and Hansen solubility parameters (HSPd) of the dispersant is 10.0 MPa1/2 or less.
    Type: Application
    Filed: March 16, 2021
    Publication date: April 27, 2023
    Applicant: ZEON CORPORATION
    Inventor: Naoki TAKAHASHI
  • CONJUGATED-DIENE-BASED POLYMER, COMPOSITION OF CONJUGATED-DIENE-BASED POLYMER, CROSSLINKED RUBBER OBJECT, AND TIRE
    Publication number: 20230130221
    Abstract: A conjugated diene-based polymer including at least conjugated diene monomer units, and having a shrinkage factor of high molecular weight molecules of 0.4 to 0.8, a degree of adsorption of high molecular weight molecules onto silica of 75% or less, and a degree of adsorption of medium molecular weight molecules of 40 to 100%.
    Type: Application
    Filed: March 29, 2021
    Publication date: April 27, 2023
    Applicants: ZS ELASTOMERS CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED, ZEON CORPORATION
    Inventors: Jesus RODRIGUEZ CASTANON, Hisakatsu HAMA, Sho KANESAKA, Yukari ICHIMIYA
  • Power generation module group
    Patent number: 11637526
    Abstract: The power generation module group 1 includes a sheet 10 and power generation panels 21 to 24. First lines L1 and L1? are present between the panels 21 and 22 adjacent to each other in the lateral direction, the first lines crossing neither the panels 21 nor 22 and coming in contact with both the panels 21 and 22. The second line L2 is present on the bottom side of the panel 21 and on the bottom side of the panel 22, crosses neither the panels 21 nor 22 and is parallel in the lateral direction. An angle ?1 that is the largest angle on the panel 22 side of angles formed by the second line L2 and the first lines L1 and L1? is an acute angle. The panels 23 and 24 are disposed in line symmetry with the panels 21 and 22, respectively, with respect to the lateral direction.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 25, 2023
    Assignee: ZEON CORPORATION
    Inventors: Yuki Hayashi, Kiyoshige Kojima, Masayoshi Yoshida