Patents by Inventor Kazuki Kouno

Kazuki Kouno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240123425
    Abstract: A carbon dioxide absorbent containing a polyamine compound (A) having an alicyclic hydrocarbon structure, wherein a content of the polyamine compound (A) is 60% by mass or more.
    Type: Application
    Filed: December 14, 2021
    Publication date: April 18, 2024
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Yuki KAWASHIMA
  • Patent number: 11945906
    Abstract: Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A), a compound (B) represented by the specific formula (1), and a compound (C) represented by the specific formula (2), and wherein a mass ratio of the component (B) to the component (C) [(B)/(C)] is from 0.01 to 5.0, an epoxy resin composition, and use of an amine composition for an epoxy resin curing agent.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: April 2, 2024
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kousuke Ikeuchi, Kazuki Kouno, Yuma Ohno, Emi Ota, Aoi Yokoo
  • Publication number: 20240100473
    Abstract: A carbon dioxide absorbent containing an amine compound (A) having a heterocyclic structure (X) selected from the group consisting of an oxygen-containing heterocyclic structure and a sulfur-containing heterocyclic structure, a content of the amine compound (A) being 65% by mass or more.
    Type: Application
    Filed: December 20, 2021
    Publication date: March 28, 2024
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Yuki KAWASHIMA, Ryo ASAI, Tomoaki KIRINO
  • Patent number: 11939420
    Abstract: Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A) and a compound (B) represented by the following formula (1), and wherein the content of the component (B) based on 100 parts by mass of the component (A) is from 1.5 to 20.0 parts by mass, an epoxy resin composition, and an epoxy resin curing agent for an amine composition. In the formula (1), R1 is an alkyl group having 1 to 6 carbon atoms optionally having a hydroxy group, R2NHCH2—, where R2 represents an alkyl group having 1 to 6 carbon atoms, or a group represented by the following formula (1A), and p is a number of 0 to 2. In the formula (1A), R3 represents a hydrogen atom or NH2—.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: March 26, 2024
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yuma Ohno, Kazuki Kouno, Kousuke Ikeuchi, Emi Ota, Aoi Yokoo
  • Publication number: 20230416450
    Abstract: Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains metaxylylenediamine and paraxylylenediamine at a mass ratio of 99/1 to 51/49, an epoxy resin composition, and a paint and an adhesive containing these.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 28, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Takuma HANAOKA, Kazuki KOUNO, Yuma OHNO
  • Publication number: 20230416520
    Abstract: An epoxy resin composition containing an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and a polyalkylene glycol, as well as a gas barrier laminate and a packaging material in which the epoxy resin composition is used.
    Type: Application
    Filed: October 6, 2021
    Publication date: December 28, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Naoko KOBAYASHI, Kazuki KOUNO, Ryoma HASHIMOTO
  • Publication number: 20230383049
    Abstract: Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A) and a compound (B) represented by the following formula (1), and wherein the content of the component (B) based on 100 parts by mass of the component (A) is from 0.01 to 2.0 parts by mass, an epoxy resin composition, and use of an amine composition for an epoxy resin curing agent, wherein R1 represents an alkyl group having 1 to 6 carbon atoms, and p is a number of 1 to 3.
    Type: Application
    Filed: August 19, 2021
    Publication date: November 30, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Kousuke IKEUCHI, Yuma OHNO, Emi OTA, Aoi YOKOO
  • Patent number: 11814471
    Abstract: Provided is a gas barrier packaging material including a base and a cured resin layer, the base having a surface constituted of an inorganic substance. The cured resin layer is a cured product of an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, and a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.60 to 20.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 14, 2023
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki Kouno, Ryoma Hashimoto
  • Publication number: 20230323017
    Abstract: Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A) and a compound (B) represented by the following formula (1), and wherein the content of the component (B) based on 100 parts by mass of the component (A) is from 1.5 to 20.0 parts by mass, an epoxy resin composition, and an epoxy resin curing agent for an amine composition. In the formula (1), R1 is an alkyl group having 1 to 6 carbon atoms optionally having a hydroxy group, R2NHCH2—, where R2 represents an alkyl group having 1 to 6 carbon atoms, or a group represented by the following formula (1A), and p is a number of 0 to 2. In the formula (1A), R3 represents a hydrogen atom or NH2—.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 12, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yuma OHNO, Kazuki KOUNO, Kousuke IKEUCHI, Emi OTA, Aoi YOKOO
  • Publication number: 20230323018
    Abstract: Provided are an epoxy resin curing agent containing an amine composition or a modified product thereof, wherein the amine composition contains bis(aminomethyl)cyclohexane (A), a compound (B) represented by the specific formula (1), and a compound (C) represented by the specific formula (2), and wherein a mass ratio of the component (B) to the component (C) [(B)/(C)] is from 0.01 to 5.0, an epoxy resin composition, and use of an amine composition for an epoxy resin curing agent.
    Type: Application
    Filed: August 19, 2021
    Publication date: October 12, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kousuke IKEUCHI, Kazuki KOUNO, Yuma OHNO, Emi OTA, Aoi YOKOO
  • Publication number: 20230059584
    Abstract: An epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an unsaturated fatty acid amide having from 14 to 24 carbons, a gas barrier laminate and a retort food packaging material using the epoxy resin composition, an odor-proofing or aroma-retaining packaging material, an odor-proofing or aroma-retaining method of sealing an article containing an odorous component or an aromatic component in the packaging material, a heat-shrinkable label, the production method of the heat-shrinkable label, a heat-shrunken label and a bottle having the heat-shrunken label, and a CO2 transmission prevention method.
    Type: Application
    Filed: January 22, 2021
    Publication date: February 23, 2023
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Ryoma HASHIMOTO, Naoko KOBAYASHI
  • Publication number: 20220332885
    Abstract: Provided is a gas barrier packaging material including a base and a cured resin layer, the base having a surface constituted of an inorganic substance. The cured resin layer is a cured product of an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, and a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.60 to 20.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 20, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Ryoma HASHIMOTO
  • Patent number: 11472906
    Abstract: An active energy ray-curable resin composition containing: a reaction product (X) of a component (A) and a component (B) below: (A) at least one selected from the group consisting of meta-xylylenediamine and para-xylylenediamine; (B) at least one selected from the group consisting of unsaturated carboxylic acids represented by the following general formula (1) and derivatives of the unsaturated carboxylic acids: wherein, in the formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, an aryl group having from 6 to 12 carbon atoms, or an aralkyl group having from 7 to 13 carbon atoms; (C) a compound having at least one group selected from the group consisting of a glycidyl group and an isocyanate group, and an ethylenically unsaturated bond-containing group; and (D) a phosphoric acid derivative having an ethylenically unsaturated bond-containing group.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: October 18, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Ryoma Hashimoto, Kazuki Kouno
  • Publication number: 20220315694
    Abstract: Provided is an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, wherein a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.10 to 3.0. Also provided are a gas barrier film and a laminate in which the epoxy resin composition is used.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 6, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Ryoma HASHIMOTO
  • Publication number: 20220145118
    Abstract: The present invention provides: a composition which has a low viscosity, a high refractive index when being cured, and in which the precipitation of crystals is suppressed for a long time when stored at a low temperature; and a paint comprising the same. According to one embodiment of the present invention, provided is a composition which includes: a (meth)acrylate represented by general formula (1); and a compound represented by general formula (2), wherein the mass percentage of the content of the (meth)acrylate to the content of the compound represented by general formula (2) is 60:40 to 90:10 (exclusive of 60:40 and 90:10).
    Type: Application
    Filed: April 16, 2020
    Publication date: May 12, 2022
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki KOUNO, Yasuo KUSUBE, Kazunori TANIGUCHI, Shohei NISHIDA
  • Patent number: 11326073
    Abstract: The present invention provides: a composition which has a low viscosity, a high refractive index when being cured, and in which the precipitation of crystals is suppressed for a long time when stored at a low temperature; and a paint comprising the same. According to one embodiment of the present invention, provided is a composition which includes: a (meth)acrylate represented by general formula (1); and a compound represented by general formula (2), wherein the mass percentage of the content of the (meth)acrylate to the content of the compound represented by general formula (2) is 60:40 to 90:10 (exclusive of 60:40 and 90:10).
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: May 10, 2022
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki Kouno, Yasuo Kusube, Kazunori Taniguchi, Shohei Nishida
  • Patent number: 11078355
    Abstract: Provided is a resin composition which is capable of forming a molded body that has excellent surface hardness, transparency, hue and weather resistance, while exhibiting excellent wet heat resistance. A resin composition which contains a (meth)acrylic copolymer (A) and a polycarbonate-based resin (B), and wherein: the (meth)acrylic copolymer (A) contains an aromatic (meth)acrylate unit (a1), a methyl (meth)acrylate unit (a2) and a (meth)acrylate unit (a3) represented by formula (1); the mass ratio (a1)/(a2) is from 5/95 to 85/15; the content of the unit (a3) is 0.1-10 parts by mass relative to 100 parts by mass of the total of the units (a1) and (a2); and the unit (a1) is different from the unit (a3).
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 3, 2021
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki Kouno, Hisayuki Kuwahara
  • Publication number: 20210214479
    Abstract: An active energy ray-curable resin composition containing: a reaction product (X) of a component (A) and a component (B) below: (A) at least one selected from the group consisting of meta-xylylenediamine and para-xylylenediamine; (B) at least one selected from the group consisting of unsaturated carboxylic acids represented by the following general formula (1) and derivatives of the unsaturated carboxylic acids: wherein, in the formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, an aryl group having from 6 to 12 carbon atoms, or an aralkyl group having from 7 to 13 carbon atoms; (C) a compound having at least one group selected from the group consisting of a glycidyl group and an isocyanate group, and an ethylenically unsaturated bond-containing group; and (D) a phosphoric acid derivative having an ethylenically unsaturated bond-containing group.
    Type: Application
    Filed: May 31, 2019
    Publication date: July 15, 2021
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Ryoma HASHIMOTO, Kazuki KOUNO
  • Patent number: 10920000
    Abstract: The present invention provides: a light diffusing agent which enables the achievement of a resin molded body having excellent light diffusibility, light transmission properties, surface hardness and the like; a resin composition which contains this light diffusing agent; and a molded body. One embodiment of the present invention provides a light diffusing agent which contains a copolymer that contains a (meth)acrylate constituent unit (A) represented by general formula (1) and a polyvalent vinyl constituent unit (B) that is copolymerizable with the constituent unit (A).
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 16, 2021
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Kazuki Kouno
  • Patent number: 10752729
    Abstract: A coating film formed by curing of an epoxy resin composition containing at least an epoxy resin, an epoxy resin curing agent and a solvent, wherein the coating film contains the solvent in a ratio of 1% by mass or more and 20% by mass or less, and the epoxy resin curing agent is a reaction product of the following (A) and (B). (A) At least one selected from the group consisting of metaxylylenediamine and paraxylylenediamine. (B) At least one selected from the group consisting of an unsaturated carboxylic acid represented by the following formula (1) and a derivative thereof: wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms, or an aryl group.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 25, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki Kouno, Saeko Sato, Tomotaka Wada, Yuiga Asai