Patents Assigned to Zeon Corporation
  • Publication number: 20220200000
    Abstract: Provided is a new technique related to electrochemical devices that can sufficiently ensure adhesiveness of a functional layer and safety of an electrochemical device while, on the other hand, causing an electrochemical device to display excellent high-temperature storage characteristics. A composite particle for an electrochemical device functional layer includes a core particle containing a melamine compound and a shell polymer that at least partially covers an outer surface of the core particle and that includes at least one selected from the group consisting of a nitrile group, a carboxy group, a hydroxyl group, a sulfo group, an aldehyde group, and an amide group.
    Type: Application
    Filed: March 17, 2020
    Publication date: June 23, 2022
    Applicant: ZEON CORPORATION
    Inventors: Maki MESUDA, Kenya SONOBE, Yasuhiro ISSHIKI
  • Patent number: 11366258
    Abstract: A method for producing a broadband wavelength film including, in this order: a first step of preparing a layer (A) as a long-length obliquely stretched film; a second step of forming on the layer (A) a layer (B) of a resin having a negative intrinsic birefringence to obtain a multilayer film; and a third step of stretching the multilayer film to obtain a long-length broadband wavelength film including a ?/2 layer and a ?/4 layer.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: June 21, 2022
    Assignee: ZEON CORPORATION
    Inventors: Takao Kobayashi, Shunsuke Takagi
  • Patent number: 11364486
    Abstract: A supported catalyst comprises: a support that is particulate; and a composite layer laminate formed outside the support and including two or more composite layers, wherein each of the composite layers includes a catalyst portion containing a catalyst and a metal compound portion containing a metal compound, the support contains 10 mass % or more of each of Al and Si, and a volume-average particle diameter of the support is 50 ?m or more and 400 ?m or less.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: June 21, 2022
    Assignees: WASEDA UNIVERSITY, ZEON CORPORATION
    Inventors: Suguru Noda, Kosuke Kawabata, Takayoshi Hongo
  • Patent number: 11365331
    Abstract: A latex of a highly saturated nitrile rubber wherein the highly saturated nitrile rubber contains ?,?-ethylenically unsaturated nitrile monomer units in a ratio of 10 to 60 wt %, has an iodine value of 120 or less, and has a weight average molecular weight of solubles in chloroform of 100,000 or less, and when removing volatiles contained in the latex and making a film of the highly saturated nitrile rubber, a loss tangent tan ?(50° C.) at 50° C. of the film is 0.3 to 0.6 and a complex torque S* at the time of 100% shear strain at 100° C. of the film is 20 dNm or less, and an adhesive composition containing the latex are provided.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: June 21, 2022
    Assignee: ZEON CORPORATION
    Inventors: Tomonori Nakashima, Osamu Senda
  • Publication number: 20220185919
    Abstract: A conjugated diene copolymer has a covalent bond reversibly dissociated and added by heat, and has at least two peaks in each of curves of molecular weight distributions measured at 40° C. and 60° C. by gel permeation chromatography, wherein a change rate of the proportion of the area of the peak having the lowest molecular weight in measurement at 60° C. to the proportion of the area of the peak having the lowest molecular weight in measurement at 40° C.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 16, 2022
    Applicants: ZS ELASTOMERS CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED, ZEON CORPORATION
    Inventors: Hiroshi AOSHIMA, Jesus RODRIGUEZ CASTANON, Hisakatsu HAMA
  • Publication number: 20220190340
    Abstract: A binder composition for a non-aqueous secondary battery electrode contains a polymer A. The polymer A includes a nitrile group-containing monomer unit in a proportion of not less than 80.0 mass % and not more than 99.9 mass %, has a weight-average molecular weight (Mw) of not less than 700,000 and not more than 2,000,000, and includes components having a molecular weight of less than 500,000 in a proportion of less than 30%.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventors: Junichi ASANO, Yukie ITO
  • Publication number: 20220186013
    Abstract: A sealant for an electrochemical device contains (A) a polyisobutylene polymer and (B) a conjugated diene polymer. The sealant contains the (A) polyisobutylene polymer in a proportion of more than 60 mass % and not more than 98 mass % and the (B) conjugated diene polymer in a proportion of not less than 2 mass % and less than 40 mass % relative to the total mass of the (A) polyisobutylene polymer and the (B) conjugated diene polymer.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Publication number: 20220184563
    Abstract: A zeolite membrane composite includes a porous support and a zeolite membrane formed on at least one surface of the porous support. The zeolite membrane of the zeolite membrane composite is formed of an X-MOR-type zeolite, where X includes at least one type of transition metal ion.
    Type: Application
    Filed: March 18, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventor: Takahiro SUZUKI
  • Publication number: 20220185669
    Abstract: Provided is a material that has excellent handleability and processability, and that when used as a support for a different material, enables support of the different material up to an inner part thereof. A carbon sheet contains one or more carbon nanotubes and has a porosity of not less than 48% and not more than 90%. The carbon sheet preferably includes: a porous substrate made from carbon; and the carbon nanotubes, attached to the porous substrate. The carbon nanotubes contained in the carbon sheet are preferably single-walled carbon nanotubes. Moreover, the carbon nanotubes contained in the carbon sheet preferably have a nitrogen adsorption specific surface area of 600 m2/g or more.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventors: Tomoko YAMAGISHI, Mitsugu UEJIMA
  • Publication number: 20220184560
    Abstract: A method of producing a separation membrane includes a seed crystal adhesion step of adhering zeolite seed crystals to a porous support formed of stainless steel to obtain a seed crystal-bearing support and a separation layer formation step of forming a porous separation layer formed of a zeolite on the seed crystal-bearing support. The stainless steel has a contact angle with water of 90° or more. The seed crystal adhesion step includes bringing the zeolite seed crystals and a solvent having a contact angle with the stainless steel of 30° or less into contact with the porous support.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventors: Takahiro SUZUKI, Shiori OMORI
  • Publication number: 20220190439
    Abstract: Provided is a technique relating to a functional layer for an electrochemical device that has excellent process adhesiveness and heat resistance and enables good electrolyte solution injectability. The functional layer contains inorganic particles and a particulate polymer. In this functional layer, a proportion of area occupied by the inorganic particles per unit area of a surface of the functional layer in plan view of the surface of the functional layer is more than 90%, the particulate polymer has a volume-average particle diameter of not less than 1.0 ?m and not more than 10.0 ?m, and the volume-average particle diameter of the particulate polymer is larger than the thickness of an inorganic particle layer.
    Type: Application
    Filed: February 6, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventor: Keiichiro TANAKA
  • Publication number: 20220187708
    Abstract: Provided is a polymer capable of forming a resist pattern in which pattern top loss is inhibited when used as a main chain scission-type positive resist. 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, and the proportion of components having a molecular weight of 100,000 or more in the polymer is 10% or more. In general formula (I), X is a fluorine, chlorine, bromine, iodine, or astatine atom, and R1 is an organic group including 3 to 7 fluorine atoms. In general formula (II), R2 is a hydrogen atom, fluorine atom, unsubstituted alkyl group, or fluorine atom-substituted alkyl group, R3 is a hydrogen atom, unsubstituted alkyl group, or fluorine atom-substituted alkyl group, p and q are integers of 0 to 5, and p+q=5.
    Type: Application
    Filed: April 13, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventor: Manabu HOSHINO
  • Publication number: 20220185747
    Abstract: A separation method includes a separation step of using a zeolite membrane composite to separate a branched diolefin from a branched hydrocarbon mixture containing the branched diolefin and at least one branched hydrocarbon in which the number of carbon-carbon double bonds is 1 or less and that is of an equivalent carbon number n to the branched diolefin. The zeolite membrane composite used in this step is a zeolite membrane composite that includes a porous support and a FAU-type zeolite membrane formed on at least one surface of the porous support, and in which the FAU-type zeolite membrane is a silylated FAU-type zeolite membrane including a silyl group at the surface thereof.
    Type: Application
    Filed: March 17, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventor: Takahiro SUZUKI
  • Publication number: 20220190341
    Abstract: A binder composition for a secondary battery positive electrode contains a specific polymer. The specific polymer includes a nitrile group-containing monomer unit and a linear alkylene structural unit having a carbon number of 4 or more. The pH of an extract of the specific polymer that is obtained by a specific method is 5.5 or higher.
    Type: Application
    Filed: May 19, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventors: Shinsuke SUGAWARA, Naoki TAKAHASHI
  • Patent number: 11362334
    Abstract: Provided is a binder composition for an electrical storage device that can both ensure stability of a slurry composition and enhance peel strength of an electrode and rate characteristics of an electrical storage device. The binder composition contains a particulate polymer. The particulate polymer includes a cyano group-containing monomer unit in a proportion of not less than 5 mass % and not more than 45 mass % and includes an amide group-containing monomer unit in a proportion of not less than 0.3 mass % and not more than 10 mass %. Moreover, the particulate polymer has a core-shell structure including a core portion and a shell portion at least partially covering an outer surface of the core portion, and has at least one glass-transition temperature at 10° C. or lower.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: June 14, 2022
    Assignee: ZEON CORPORATION
    Inventor: Kenji Arai
  • Patent number: 11362619
    Abstract: Disclosed is a photoelectric conversion device that includes: a thin panel-shaped photoelectric conversion module; a first connection member that couples to an outer edge of the photoelectric conversion module at a joint so as to be electrically connected to the photoelectric conversion module; a reinforcing member that couples to a portion including the joint; and a main body that receives electric power supply from the photoelectric conversion module via the first connection member. The first connection member is mechanically and electrically attachable/detachable to/from the main body and has a thickness in vertical direction that is greater than a thickness in vertical direction of the photoelectric conversion module and less than or equal to a thickness in vertical direction of the reinforcing member at the joint.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: June 14, 2022
    Assignee: ZEON CORPORATION
    Inventors: Midori Yamaai, Kiyoshige Kojima, Yuki Hayashi, Masayoshi Yoshida
  • Patent number: 11358866
    Abstract: Provided is a fibrous carbon nanostructure that is easy to surface modify. A symmetry factor of a peak of a first derivative curve of a thermogravimetric curve obtained through thermogravimetric analysis of the fibrous carbon nanostructure in a dry air atmosphere is 3.70 or less. The first derivative curve of the thermogravimetric curve can be a temperature derivative curve of the thermogravimetric curve or a time derivative curve of the thermogravimetric curve.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 14, 2022
    Assignee: ZEON CORPORATION
    Inventor: Osamu Kawakami
  • Publication number: 20220175867
    Abstract: Disclosed is a method for producing a grape extract which comprises extracting a grape at an extraction temperature of 15° C. or higher and 50° C. or lower using an extractant containing a polar solvent and an acid component. Also disclosed is a grape extract which comprises malvidin-3,5-diglucoside and a saccharide, wherein a dry mass content of the malvidin-3,5-diglucoside is 3% by mass or more, and a dry mass content of the saccharide is 80% by mass or less.
    Type: Application
    Filed: November 26, 2021
    Publication date: June 9, 2022
    Applicant: ZEON CORPORATION
    Inventor: Naomi NISHIZAWA
  • Publication number: 20220181630
    Abstract: A binder composition for a non-aqueous secondary battery contains a particulate polymer including a block copolymer A represented by the following general formula (A): Ar1a-Da-Ar2a. (In general formula (A), Ar1a indicates a block region that has a weight-average molecular weight of 5,500 to 20,000 and is formed of an aromatic vinyl monomer unit, Ar2a indicates a block region that has a weight-average molecular weight of 40,000 to 400,000 and is formed of an aromatic vinyl monomer unit, and Da indicates a block region that is formed of an aliphatic conjugated diene monomer unit.
    Type: Application
    Filed: March 19, 2020
    Publication date: June 9, 2022
    Applicant: ZEON CORPORATION
    Inventors: Ai MASUDA, Hiroto KIDOKORO
  • Publication number: 20220177419
    Abstract: A phase difference plate includes a phase difference plate P1 and a phase difference plate P2. An in-plane slow axis of the phase difference plate P1 is orthogonal to an in-plane slow axis of the phase difference plate P2. The phase difference plate P2 includes a layer of a liquid crystal material oriented in an in-plane direction. An in-plane retardation ReP2(?) at a wavelength ? nm of the phase difference plate P2 satisfies the following formulae (e1) and (e2): {Re2(400)?Re2(550)}/{Re2(550)?Re2(700)}<2.90 (e1), and Re2(400)/Re2(700)>1.13 (e2). An in-plane retardation ReP1(?) of the phase difference plate P1 at a wavelength ? nm and the in-plane retardation ReP2(?) of the phase difference plate P2 at the wavelength ? nm satisfy the following formulae (e4) and (e5): ReP1(550)>ReP2(550) (e4), and ReP1(400)/ReP1(700)<ReP2(400)/ReP2(700) (e5).
    Type: Application
    Filed: February 21, 2022
    Publication date: June 9, 2022
    Applicant: ZEON CORPORATION
    Inventors: Masakazu SAITO, Kazuhiro OSATO, Masashi AIMATSU, Kei SAKAMOTO