Patents Assigned to Zeon Corporation
  • LAMINATE FOR SECONDARY BATTERY, SECONDARY BATTERY, AND METHOD OF PRODUCING LAMINATE FOR SECONDARY BATTERY
    Publication number: 20230062789
    Abstract: Provided is a laminate for a secondary battery with which a secondary battery in which both safety and charging capacity are excellent can be produced. The laminate includes a negative electrode, a first separator affixed to one surface of the negative electrode, a positive electrode affixed to a surface of the first separator at an opposite side thereof to the negative electrode, and a second separator affixed to another surface of the negative electrode. In the laminate, at least part of a side surface of the positive electrode along a stacking direction is covered by a raised section where the first separator is deformed. When a surface where the first separator and positive electrode are in contact is taken as a reference surface, stacking direction height of the raised section from the reference surface is 15% to 130% of stacking direction height of the positive electrode from the reference surface.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 2, 2023
    Applicant: ZEON CORPORATION
    Inventor: Kazuki TAKAGI
  • COPOLYMER, POSITIVE RESIST COMPOSITION, AND METHOD OF FORMING RESIST PATTERN
    Publication number: 20230063003
    Abstract: Provided is a copolymer that can be favorably used as a main chain scission-type positive resist having excellent dry etching resistance. The copolymer includes a monomer unit (A) represented by formula (I), shown below, and a monomer unit (B) represented by formula (II), shown below, and has a weight-average molecular weight of 80,000 or more. In the formulae, L is a single bond or a divalent linking group, Ar is an optionally substituted aromatic ring group, R1 is an alkyl group, R2 is an alkyl group, a halogen atom, or a haloalkyl group, p is an integer of not less than 0 and not more than 5, and in a case in which more than one R2 is present, each R2 may be the same or different.
    Type: Application
    Filed: January 13, 2021
    Publication date: March 2, 2023
    Applicant: ZEON CORPORATION
    Inventor: Manabu HOSHINO
  • LAMINATE FOR SECONDARY BATTERY AND SECONDARY BATTERY
    Publication number: 20230060344
    Abstract: A laminate for a secondary battery includes an electrode and a separator that are stacked via an adhesive material. For this laminate, when a value measured for shear peel strength between the electrode and the separator with varying temperature is taken to be A (mN/mm2), a value of maximum heat shrinkage force for the separator determined by thermomechanical analysis is taken to be B (mN/mm2), and a temperature at which heat shrinkage force for the separator determined by thermomechanical analysis decreases to a value (mN/mm2) that is 20% higher than a value (mN/mm2) of heat shrinkage force at 30° C. is taken to be a heat shrinkage end temperature ? (°C.), A has a value satisfying A > B in a temperature range of not lower than 25° C. and not higher than the heat shrinkage end temperature ?°C.
    Type: Application
    Filed: January 25, 2021
    Publication date: March 2, 2023
    Applicant: ZEON CORPORATION
    Inventors: Masanobu SATO, Tasuku OGIHARA
  • PRESSURE-SENSITIVE ADHESIVE COMPOSITION
    Publication number: 20230060226
    Abstract: Provided is an adhesive composition having high holding power. Provided is an adhesive composition comprising a ring-opened copolymer containing a structural unit derived from a monocyclic olefin and a structural unit derived from a polycyclic olefin; and a tackifying resin.
    Type: Application
    Filed: January 21, 2021
    Publication date: March 2, 2023
    Applicant: ZEON CORPORATION
    Inventors: Takuro SAKURAI, Atsushi NOZAWA
  • BINDER COMPOSITION FOR SECONDARY BATTERY, SLURRY COMPOSITION FOR SECONDARY BATTERY, FUNCTIONAL LAYER FOR SECONDARY BATTERY, SEPARATOR FOR SECONDARY BATTERY, ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY
    Publication number: 20230065518
    Abstract: Provided is a binder composition for a secondary battery with which excellent close adherence is obtained between a substrate and a layer obtained using the binder composition and that can result in a secondary battery having good cycle characteristics. The binder composition contains a polymer and a solvent, wherein the polymer is core-shell particles including a core portion formed of a polymer (a1) and a shell portion formed of a polymer (a2). The polymer (a2) includes specific monomer units with specific amounts, wherein at least one type of monomer unit selected from a monofunctional unsaturated carboxylic acid monomer unit and a monofunctional unsaturated sulfonic acid monomer unit is not less than 0.1 mol and not more than 15,000 mol relative to 1 mol of a monomer unit of a monomer including at least two vinyl functional groups.
    Type: Application
    Filed: February 3, 2021
    Publication date: March 2, 2023
    Applicant: ZEON CORPORATION
    Inventor: Yusuke ADACHI
  • FERULIC ACID DECARBOXYLASE MUTANT DERIVED FROM SACCHAROMYCES, AND METHOD FOR PRODUCING UNSATURATED HYDROCARBON COMPOUND USING SAME
    Publication number: 20230068606
    Abstract: It has been found that wild-type ferulic acid decarboxylase derived from Saccharomyces has high catalytic activity for the production of unsaturated hydrocarbon compounds. Further, it has been found that in the ferulic acid decarboxylase, substitute of the amino acid at position 398 with glutamine, methionine, asparagine, phenylalanine, histidine, or threonine more improves the catalytic activity, making it possible to provide a method capable of producing an unsaturated hydrocarbon compound such as butadiene with high productivity, and an enzyme used in the method.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 2, 2023
    Applicants: RIKEN, ZEON CORPORATION, THE Yokohama Rubber Co., Ltd.
    Inventors: Tomokazu SHIRAI, Yutaro MORI, Kazuhiro TAKAHASHI, Yayoi AKAHORI
  • CONNECTION UNIT
    Publication number: 20230053520
    Abstract: A connection unit includes: a body having peripheral edges; magnets, at least one of which being disposed on each side of the peripheral edges of the body; and electrode terminals, at least three of which being disposed on the each side of the peripheral edges of the body. An outer surface of the body has a curved surface. The electrode terminals are disposed along the curved surface or the surface having the polygonal cross section of the outer surface. The electrode terminals disposed on the peripheral edges of the body have either: one positive electrode terminal and two negative electrode terminals, or one negative electrode terminal and two positive electrode terminals.
    Type: Application
    Filed: October 13, 2022
    Publication date: February 23, 2023
    Applicant: ZEON CORPORATION
    Inventors: Midori YAMAAI, Naomi SHIGA, Masayoshi YOSHIDA
  • ELECTROCHEMICAL DEVICE, ELECTRODE FOR ELECTROCHEMICAL DEVICES, COATING LIQUID FOR ELECTROCHEMICAL DEVICES, AND USE OF SAME
    Publication number: 20230055227
    Abstract: An electrochemical device, which is a non-aqueous electrochemical device, comprising a polymer (P) enclosed in an inside of the electrochemical device, wherein the polymer (P) is a polymer having a molecular structure containing a unit (P) represented by the following formula (P), the polymer (P) having a weight-average molecular weight of greater than 50,000, as well as an electrode for an electrochemical device, a coating liquid for an electrochemical device, an insulating layer for an electrochemical device, an undercoat layer for an electrochemical device, and an electrolytic solution for an electrochemical device including the polymer (P) and other ingredients: in the formula (P), RP is a group of 1 to 20 carbon atoms.
    Type: Application
    Filed: December 24, 2020
    Publication date: February 23, 2023
    Applicant: ZEON CORPORATION
    Inventors: Hiroyuki YONEMARU, Yoko HASHIZUME
  • Method of producing slurry, method of producing composite resin material, and method of producing shaped product
    Patent number: 11584831
    Abstract: Provided is a method of producing a slurry that enables simple production of a slurry in which fibrous carbon nanostructures are favorably dispersed. The method of producing a slurry includes: a mixing step of mixing resin particles having an average particle diameter of at least 1 ?m and not more than 700 ?m, fibrous carbon nanostructures, and a dispersion medium to obtain a mixed liquid; and a dispersing step of subjecting the mixed liquid to dispersion treatment using a wet medialess disperser under conditions in which pressure acting on the mixed liquid (gauge pressure) is 5 MPa or less to obtain a slurry. The fibrous carbon nanostructures preferably include carbon nanotubes.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: February 21, 2023
    Assignee: ZEON CORPORATION
    Inventors: Yoshihisa Takeyama, Makoto Takeshita
  • BINDER PARTICLES FOR ALL-SOLID-STATE BATTERY, COMPOSITION FOR ALL-SOLID-STATE BATTERY, FUNCTIONAL LAYER FOR ALL-SOLID-STATE BATTERY, AND ALL-SOLID-STATE BATTERY
    Publication number: 20230051296
    Abstract: Provided are binder particles for an all-solid-state battery with which an all-solid-state battery having excellent battery characteristics can be obtained even in a situation in which the all-solid-state battery is produced by a dry method. The binder particles for an all-solid-state battery are formed of a polymer and have a cohesion of not less than 1% and less than 30% and a volume-average particle diameter D50 of not less than 10 ?m and not more than 100 ?m. Moreover, a composition for an all-solid-state battery contains these binder particles for an all-solid-state battery and solid electrolyte particles. Furthermore, a functional layer for an all-solid-state battery is formed from this composition for an all-solid-state battery. Also, an all-solid-state battery includes this functional layer for an all-solid-state battery.
    Type: Application
    Filed: January 20, 2021
    Publication date: February 16, 2023
    Applicant: ZEON CORPORATION
    Inventor: Yusaku MATSUO
  • OLIGOPEPTIDE SEARCH METHOD, OLIGOPEPTIDE, MODIFIED PEPTIDE, AND IMMUNOASSAY METHOD
    Publication number: 20230047436
    Abstract: A modified peptide or a modified polypeptide has the amino acid sequence of Thr-Val-Asp-Ser-Cys-Leu-Thr (SEQ ID NO: 1) and adhesiveness to a norbornene-based polymer. A ratio of the total number of amino acids constituting the modified peptide or the modified polypeptide to the number of oligopeptides consisting of the amino acid sequence of SEQ ID NO: 1 contained in the modified peptide or the modified polypeptide is 7 or more and 80 or less. The number of oligopeptides consisting of the amino acid sequence of SEQ ID NO: 1 is 1.
    Type: Application
    Filed: September 22, 2022
    Publication date: February 16, 2023
    Applicant: ZEON CORPORATION
    Inventor: Naoya ICHIMURA
  • PHOTOELECTRIC CONVERSION ELEMENT AND METHOD OF PRODUCING SAME
    Publication number: 20230050182
    Abstract: Provided are a photoelectric conversion element that displays excellent photoelectric conversion efficiency and is easy to produce and a method of producing this photoelectric conversion element. A photoelectric conversion element (100) includes, in stated order, a light-transmitting base plate (1), a transparent conductive film (2), a first conductive layer (5) formed of a base layer (3) and a porous semiconductor layer (4), a power-generating layer (6), and a second conductive layer (8). The second conductive layer (8) is formed of a porous self-supporting sheet that at least contains one or more single-walled carbon nanotubes.
    Type: Application
    Filed: January 12, 2021
    Publication date: February 16, 2023
    Applicant: ZEON CORPORATION
    Inventor: Ryoichi KOMIYA
  • PRE-FILLED DRUG PACKAGE AND METHOD OF PRODUCING PRE-FILLED DRUG PACKAGE
    Publication number: 20230047299
    Abstract: Provided is a pre-filled drug package that can inhibit protein aggregation after long-term storage even when accommodating a protein solution formulation having a low non-ionic surfactant concentration. The pre-filled drug package includes a protein solution formulation and a housing accommodating the protein solution formulation. The protein solution formulation has a non-ionic surfactant concentration of not less than 0 mg/mL and less than 0.05 mg/mL. At least part of a section of the housing that is in contact with the protein solution formulation is formed of a resin including either or both of a hydrogenated cycloolefin ring-opened polymer and a copolymer of a cycloolefin and a chain olefin.
    Type: Application
    Filed: January 25, 2021
    Publication date: February 16, 2023
    Applicant: ZEON CORPORATION
    Inventor: Taichi SAWAGUCHI
  • Binder composition for non-aqueous secondary battery electrode, slurry composition for non-aqueous secondary battery electrode, electrode for non-aqueous secondary battery, and non-aqueous secondary battery
    Patent number: 11578164
    Abstract: Provided is a binder composition for a non-aqueous secondary battery electrode with which it is possible to form an electrode having excellent electrolyte solution injectability and process adhesiveness. The binder composition for a non-aqueous secondary battery electrode contains a particulate polymer formed by a polymer that includes a block region composed of an aromatic vinyl monomer unit and has a tetrahydrofuran-insoluble content of not less than 5 mass % and not more than 40 mass %. The binder composition for a non-aqueous secondary battery electrode preferably further contains a water-soluble polymer that includes a hydrophilic group and has a weight-average molecular weight of not less than 15,000 and not more than 500,000.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: February 14, 2023
    Assignee: ZEON CORPORATION
    Inventor: Norikazu Yamamoto
  • BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY AND METHOD OF PRODUCING SAME, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY
    Publication number: 20230044170
    Abstract: A binder composition for a non-aqueous secondary battery contains: a particulate polymer formed of a graft polymer that includes an acidic graft chain and that is obtained through a graft polymerization reaction of an acidic group-containing monomer and/or macromonomer with core particles containing a block copolymer that includes an aromatic vinyl block region formed of an aromatic vinyl monomer unit and an aliphatic conjugated diene block region formed of an aliphatic conjugated diene monomer unit; and an acidic group-containing water-soluble polymer that has a weight-average molecular weight of 200,000 or less.
    Type: Application
    Filed: January 28, 2021
    Publication date: February 9, 2023
    Applicant: ZEON CORPORATION
    Inventor: Shunjin AIHARA
  • Method for producing a polarizing plate
    Patent number: 11573359
    Abstract: A method for producing a polarizing plate including a polarizer and a substrate film is provided. The method comprises: stretching a primary film to obtain a polarizer material film; providing an unstretched substrate film on the polarizer material film to obtain a layered body; and stretching the layered body to obtain the polarizing plate. The polarizer includes a dichroic material and has a thickness T of 20 ?m or less. A phase difference Re in an in-plane direction of the substrate film in the polarizing plate is 20 nm or less.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: February 7, 2023
    Assignee: ZEON CORPORATION
    Inventors: Hiromu Mashima, Takamichi Inomata
  • BINDER COMPOSITION FOR SECONDARY BATTERY, SLURRY COMPOSITION FOR SECONDARY BATTERY, SOLID ELECTROLYTE-CONTAINING LAYER, ALL-SOLID-STATE SECONDARY BATTERY, AND METHOD OF PRODUCING ALL-SOLID-STATE SECONDARY BATTERY
    Publication number: 20230033554
    Abstract: A binder composition for a secondary battery contains a polymer, an organic solvent, and a compound formed of an organic material or an inorganic material. The compound has a solubility of 10 mass % or less in water at 25° C. and includes an element belonging to either or both of group 13 and group 14 of the periodic table, excluding carbon and germanium. Content of the element in the binder composition is not less than 5 mass ppm and not more than 5,000 mass ppm relative to the polymer.
    Type: Application
    Filed: November 26, 2020
    Publication date: February 2, 2023
    Applicant: ZEON CORPORATION
    Inventors: Yusaku MATSUO, Kenya SONOBE
  • Slurry for non-aqueous secondary battery and method of producing same, battery member for non-aqueous secondary battery and method of producing same, and non-aqueous secondary battery
    Patent number: 11569489
    Abstract: Provided is a technique relating to a slurry for a non-aqueous secondary battery that can stably be applied onto a battery member surface even in a situation in which an inkjet method is adopted. A method of producing the slurry for a non-aqueous secondary battery includes a degassing step of reducing the dissolved carbon dioxide gas concentration of a mixture containing a particulate polymer (A) and water.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: January 31, 2023
    Assignee: ZEON CORPORATION
    Inventors: Masuhiro Onishi, Masanobu Sato, Hiroshi Koga
  • Modified conjugated diene rubber
    Patent number: 11566094
    Abstract: A modified conjugated diene rubber having a modifying structure derived from a siloxane compound at at least one terminal of a polymer chain containing conjugated diene monomer unit and a monomer unit of a vinyl compound having a functional group interactive with silica.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 31, 2023
    Assignees: ZEON CORPORATION, SUMITOMO CHEMICAL COMPANY, LIMITED, ZS ELASTOMERS CO., LTD.
    Inventors: Takuro Sakurai, Takashi Iizuka, Mana Fujii, Hisakatsu Hama
  • METHOD FOR MANUFACTURING OR RECYCLING MEMBER FOR ELECTROCHEMICAL DEVICE, METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE, MEMBER FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE
    Publication number: 20230015743
    Abstract: A purpose of the present invention is to provide a method for manufacturing, etc., a member for an electrochemical device in which the problem of irreversible change in the composition of the electrochemical device due to solvent depletion, moisture absorption, etc., during manufacturing of the electrochemical devices is unlikely to occur. This method for manufacturing a member for an electrochemical device includes performing at least one shaping operation described in the present specification on a shaping material composition that comprises: at least one filler (F); a plasticizer (P-S), being water, an ionic liquid, or a mixture thereof; and a polymer (P1), the shaping material composition being substantially free of an organic solvent and having plasticity and self-supporting property.
    Type: Application
    Filed: December 25, 2020
    Publication date: January 19, 2023
    Applicant: ZEON CORPORATION
    Inventor: Hiroyuki YONEMARU