Patents Assigned to Zeon Corporation
  • Method for producing latex composition
    Patent number: 11067145
    Abstract: A method for producing a composition containing a latex of a nitrile rubber of ?,?-ethylenically unsaturated nitrile monomer unit of 8 to 60 wt % content, and an iodine value of 120 or less, an isothiazoline-based compound represented by formula (1), and a benzisothiazoline-based compound represented by formula (2), both in a content of 26 ppm by weight or more to the rubber, wherein adding both compounds to the latex at 2,000 ppm by weight/min or less, at 50° C. or lower, and the compounds in an aqueous state having 0.1 to 40 wt % concentration. formula (1), R1 and formula (2), R4 represents a hydrogen atom, or a substituted or unsubstituted organic group; wherein formula (1) R2 and R3 represent a hydrogen atom, a halogen atom, or an substituted organic group; and formula (2), R5 represent a hydrogen atom, or an substituted organic group, and an integer “n” of 0 to 4.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 20, 2021
    Assignee: ZEON CORPORATION
    Inventors: Fuminari Oyama, Yasuaki Watanabe
  • Package, and methods for producing and for using self-adhesive
    Patent number: 11066206
    Abstract: Provided is a method for producing a self-adhesive to be arranged on a package comprising a space to store contents and an opening by which the space and an outside communicate, wherein the opening is repeatedly openable and sealable by the self-adhesive that consists of a cross-linking material of a resin composition containing a (meth)acrylic acid ester copolymer resin having a glass transition temperature of ?22.8° C. or more, and a crosslinking agent. The method comprises making the resin composition that contains the (meth)acrylic acid ester copolymer resin, and the crosslinking agent, the resin composition being either emulsion or dispersion; and cross-linking the resin composition.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: July 20, 2021
    Assignee: ZEON CORPORATION
    Inventors: Mitsunori Abe, Atsushi Sone
  • Method for manufacturing gloves
    Patent number: 11065788
    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: July 20, 2021
    Assignee: ZEON CORPORATION
    Inventors: Misa Yamamoto, Masaru Kitagawa
  • Transfer body for optical film, optical film, organic electroluminescent display device, and method for manufacturing optical film
    Patent number: 11067731
    Abstract: An optical film transfer body including a substrate film, and an optically anisotropic layer that is formed on the substrate film by curing a composition containing a photopolymerizable liquid crystal compound, wherein the optically anisotropic layer contains 25% by weight or less of the photopolymerizable liquid crystal compound; an optical film including, in this order, an adherend, an adhesive layer, and an optically anisotropic layer, wherein the adhesive layer is a layer formed by curing a photocurable adhesive, the optically anisotropic layer is a layer formed by curing a composition containing a photopolymerizable liquid crystal compound, and the optically anisotropic layer contains 25% by weight or less of the photopolymerizable liquid crystal compound; as well as a method for producing an optical film and an organic electroluminescent display device.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: July 20, 2021
    Assignee: ZEON CORPORATION
    Inventor: Manabu Ito
  • 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
    Publication number: 20210218009
    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: Application
    Filed: July 23, 2019
    Publication date: July 15, 2021
    Applicant: ZEON CORPORATION
    Inventors: Masuhiro ONISHI, Masanobu SATO, Hiroshi KOGA
  • CONNECTION UNIT
    Publication number: 20210213369
    Abstract: Disclosed is a connection unit which comprises: a body; a magnet disposed on at least one side of a peripheral edge of the body; and at least three electrode terminals disposed on the one side of the body, the one side having the magnet disposed thereon, wherein an outer surface of the one side of the body has a curved surface or a surface having a polygonal cross section, the electrode terminals are disposed along the curved surface or the surface having the polygonal cross section, the at least three electrode terminals comprise one or more positive electrode terminals and negative electrode terminals, and the one or more positive electrode terminals and negative electrode terminals are disposed on the one side so as to be line-symmetrical about a perpendicular line perpendicular to the one side of the body and crossing the center of the one side of the body.
    Type: Application
    Filed: May 14, 2019
    Publication date: July 15, 2021
    Applicant: ZEON CORPORATION
    Inventors: Midori YAMAAI, Naomi SHIGA, Masayoshi YOSHIDA
  • LIQUID CRYSTAL CURED LAYER, PRODUCTION METHOD THEREFOR, OPTICAL FILM, POLARIZING PLATE, AND DISPLAY DEVICE
    Publication number: 20210214614
    Abstract: A liquid crystal cured layer formed of a cured product of a liquid crystal composition, wherein the liquid crystal composition contains a polymerizable liquid crystal compound having a reverse wavelength dispersion property, and a copolymer containing a monomer unit A including a monovalent group containing an aromatic ring and a monomer unit B containing a monovalent aliphatic hydrocarbon group optionally having a substituent, a main chain mesogen of the polymerizable liquid crystal compound in the liquid crystal cured layer is oriented at a tilt angle of 85° to 90° with respect to a layer plane of the liquid crystal cured layer.
    Type: Application
    Filed: February 13, 2019
    Publication date: July 15, 2021
    Applicants: ZEON CORPORATION, NISSAN CHEMICAL CORPORATION
    Inventors: Masakazu SAITO, Yuki FURUKAWA, Yuta KANNO
  • COPOLYMER AND POSITIVE RESIST COMPOSITION
    Publication number: 20210214481
    Abstract: Provided is a copolymer that can be favorably used as a main chain scission-type positive resist that has excellent heat resistance and that can form a resist pattern having excellent resolution and clarity. The copolymer includes a monomer unit (A) represented by the following formula (I) and a monomer unit (B) represented by the following formula (II), and has a molecular weight distribution of 1.7 or less. 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: September 18, 2019
    Publication date: July 15, 2021
    Applicant: ZEON CORPORATION
    Inventor: Manabu HOSHINO
  • BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE AND METHOD OF PRODUCING SAME, ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY
    Publication number: 20210218030
    Abstract: A binder composition for a non-aqueous secondary battery electrode contains: a polymer A including a (meth)acrylic acid ester monomer unit; a polymer B having an iodine value of not less than 5 g/100 g and not more than 100 g/100 g; a polymer C including a nitrile group-containing monomer unit in a proportion of not less than 70 mass % and not more than 98 mass %; and an organic solvent.
    Type: Application
    Filed: June 18, 2019
    Publication date: July 15, 2021
    Applicant: ZEON CORPORATION
    Inventors: Yukie ITO, Tomoya MURASE, Takafumi SEKIMOTO
  • Method for manufacturing glove
    Patent number: 11058162
    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: July 13, 2021
    Assignee: ZEON CORPORATION
    Inventors: Masaru Kitagawa, Misa Yamamoto
  • Connection instrument
    Patent number: 11063375
    Abstract: A connection instrument includes: a cable including an electrical wire and two separated covering parts covering the electrical wire; a connection terminal connectable to a terminal of an external connector; a connection part; a flat plate-shaped wiring board; and a housing. The connection part electrically connects the connection terminal and the electrical wire exposed between the two separated covering parts. The connection terminal and connection part are arranged on the wiring board. The wiring board is located between the two covering parts. The housing allows insertion/extraction of the external connector and houses the wiring board. At least part of the wiring board is roughly in contact with or included in a space linking adjacent ends of the two covering parts.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: July 13, 2021
    Assignee: ZEON CORPORATION
    Inventors: Masayoshi Yoshida, Midori Yamaai, Naomi Shiga
  • Sheet-type molded body, and laminate
    Patent number: 11052635
    Abstract: Provided is a sheet-type molded body that is formed by sewing a sheet, wherein thread is used for at least part of said sewing, the thread being composed of a resin composition for thread containing resin for thread, the thread having a melting point of no more than 200° C., and a laminate comprising: the sheet-type molded body; and a polyurethane foam formed body, the sheet-type molded body, and the laminate comprising: the sheet-type molded body; and a polyurethane foam layer being able to be produced by a simple method at low cost without damaging design qualities over time, and making it possible to prevent leakage of raw material etc. from sewed portions when backed with the polyurethane foam layer.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: July 6, 2021
    Assignee: ZEON CORPORATION
    Inventor: Takanori Fujiwara
  • COMPOSITION, RETARDATION FILM, AND METHOD FOR PRODUCING RETARDATION FILM
    Publication number: 20210198574
    Abstract: A composition includes a polymerizable liquid crystal compound (A), a photopolymerization initiator (B), and a crosslinking agent (C), and satisfies: |?a1??b1|?20 nm ??(i), and ?c1?250 nm ??(ii), where ?a1 represents a wavelength of an absorption local maximum that is the longest one of wavelengths of absorption local maxima in a light absorption spectrum of from 200 nm to 500 nm of the polymerizable liquid crystal compound (A), ?b1 represents a wavelength of an absorption local maximum that is the longest one of wavelengths of absorption local maxima in a light absorption spectrum of from 200 nm to 500 nm of the photopolymerization initiator (B), and ?c1 represents a wavelength of at least one absorption local maximum in a light absorption spectrum of from 200 nm to 500 nm of the crosslinking agent (C)).
    Type: Application
    Filed: January 21, 2019
    Publication date: July 1, 2021
    Applicant: ZEON CORPORATION
    Inventors: Wataru NAKANO, Sogo KOMOTO, Manabu ITO, Yasunori II
  • IDENTIFICATION MEDIUM, AND METHOD FOR DETERMINING AUTHENTICITY OF IDENTIFICATION MEDIUM
    Publication number: 20210198576
    Abstract: An identification medium comprising a first resin layer and a second resin layer in this order from a viewing side, wherein the first resin layer contains a first cholesteric liquid crystal resin that is a cured product of a first liquid crystal composition, and the first cholesteric liquid crystal resin selectively reflects light at a wavelength of 700 nm or longer and 900 nm or shorter, the second resin layer contains a second cholesteric liquid crystal resin that is a cured product of a second liquid crystal composition, and the second cholesteric liquid crystal resin selectively reflects light at a wavelength of 400 nm or longer and 500 nm or shorter, and the first resin layer has an average value of light transmittance at a wavelength of 400 nm or longer and 425 nm or shorter of 50% or more and 90% or less.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 1, 2021
    Applicant: ZEON CORPORATION
    Inventor: Masashi AIMATSU
  • RESIN COMPOSITION, RESIN FILM AND ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20210198475
    Abstract: Provided is a resin composition including a resin containing a polymer, a hygroscopic particle, and an organic solvent-soluble dispersant. Preferably the ratio of the dispersant relative to 100 parts by weight of the hygroscopic particle is 0.1 part by weight or more and 1000 parts by weight or less, and the absolute value of the difference in refractive index between the resin and the hygroscopic particle is 0.05 or less. Also provided are a resin film formed by molding the resin composition into a film shape, and an organic electroluminescent device including the resin film.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 1, 2021
    Applicant: ZEON CORPORATION
    Inventor: Hiroyasu INOUE
  • Composition for non-aqueous secondary battery functional layer, functional layer for non-aqueous secondary battery, and non-aqueous secondary battery
    Patent number: 11050117
    Abstract: Provided is a composition for a non-aqueous secondary battery functional layer that inhibits cissing in thin film application and enables formation of a functional layer that does not excessively increase the amount of metal deposited on an electrode during secondary battery charging. The composition for a functional layer contains organic particles, a binder, a wetting agent, and water. Content of the wetting agent is more than 1 part by mass and not more than 5 parts by mass per 100 parts by mass of the organic particles.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: June 29, 2021
    Assignee: ZEON CORPORATION
    Inventors: Takumi Sugimoto, Takuya Kaneda, Kenji Arai
  • Binder composition for electrochemical device electrode, slurry composition for electrochemical device electrode, electrochemical device electrode, and electrochemical device
    Patent number: 11046797
    Abstract: A disclosed binder composition comprises a copolymer which comprises a nitrile group-containing monomer unit, an acidic group-containing monomer unit and a basic group-containing monomer unit, wherein the proportion of the nitrile group-containing monomer unit in the copolymer is 70.0 mol % or more and 99.0 mol % or less, and wherein the total proportion of the acidic group-containing monomer unit and the basic group-containing monomer unit in the copolymer is 0.8 mol % or more and 10.0 mol % or less.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: June 29, 2021
    Assignee: ZEON CORPORATION
    Inventors: Kunihiro Goto, Maki Mesuda, Koji Annaka, Takuya Ishii
  • Laminate, method for producing same, and flexible printed circuit board
    Patent number: 11046046
    Abstract: The invention is a laminate having a resin layer containing a crystalline alicyclic structure-containing resin and a metal layer in direct contact with the resin layer, wherein an average linear expansion coefficient of the resin layer at 60 to 100° C. is 5 to 50 ppm/° C., and a ten-point average roughness (Rz) on an interface between the resin layer and the metal layer is 2.0 ?m or less, and a method for producing the laminate, and a flexible printed circuit board using the laminate. One aspect of the invention provides a laminate which has a resin layer and a metal layer in direct contact with the resin layer and is suitably used as a substrate material, and a production method therefor, as well as a flexible printed circuit board using the laminate.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: June 29, 2021
    Assignee: ZEON CORPORATION
    Inventor: Mitsuteru Endo
  • COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY FUNCTIONAL LAYER AND METHOD OF PRODUCING SAME, FUNCTIONAL LAYER FOR NON-AQUEOUS SECONDARY BATTERY, NON-AQUEOUS SECONDARY BATTERY MEMBER, AND NON-AQUEOUS SECONDARY BATTERY
    Publication number: 20210194092
    Abstract: Provided is a composition for a non-aqueous secondary battery functional layer with which it is possible to form a functional layer that can cause a separator to display excellent shutdown function. The composition for a non-aqueous secondary battery functional layer contains organic particles A. The organic particles A contain a polymer X including an aromatic vinyl monomer unit in a proportion of 20 mass % or more and a wax having a melting point of lower than 95° C. The wax is preferably an ester wax.
    Type: Application
    Filed: July 30, 2019
    Publication date: June 24, 2021
    Applicant: ZEON CORPORATION
    Inventor: Hiroyuki TAGUCHI
  • SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY FUNCTIONAL LAYER, SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY
    Publication number: 20210184313
    Abstract: Provided is a slurry composition for a functional layer that can form a functional layer capable of closely adhering strongly to a separator substrate and that can enhance rate characteristics of a secondary battery including a separator that includes the functional layer. The slurry composition for a functional layer contains a binder and a melamine compound. The binder is a polymer including at least one functional group selected from the group consisting of a carboxy group, a hydroxyl group, an amino group, an epoxy group, an oxazoline group, a sulfo group, a nitrile group, and an amide group. The melamine compound has a volume-average particle diameter of not less than 20 nm and not more than 300 nm and constitutes a proportion of not less than 0.5 mass % and not more than 85 mass % among the total of the binder and the melamine compound.
    Type: Application
    Filed: August 21, 2019
    Publication date: June 17, 2021
    Applicant: ZEON CORPORATION
    Inventors: Kazuki ASAI, Yasuhiro AKITA, Kenya SONOBE