Patents by Inventor Kenji IIBA

Kenji IIBA 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).

  • Ethylene-?-olefin copolymer and olefin resin composition
    Patent number: 10066037
    Abstract: [Problem] To provide an ethylene-?-olefin copolymer that is highly effective in improving the molding properties of polyolefin resins and at the same time highly effective improving the balance between impact strength and stiffness. [Solution] Provided is an ethylene-?-olefin copolymer having a specific MFR, a specific density, and a specific molecular weight distribution, containing a suitable amount of a long-chain branching structure characterized by a branching index, and having a specific composition distribution structure characterized by solvent fractionation behavior.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 4, 2018
    Assignee: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki Ishihama, Ryotaro Harada, Masaru Aoki, Kenji Iiba, Kazushi Kodama, Hiroto Hayashi
  • Ethylene-?-olefin copolymer and olefin resin composition
    Patent number: 10066036
    Abstract: [Problem] To provide an ethylene-?-olefin copolymer that is highly effective in improving the molding properties of polyolefin resins, improving the balance between impact strength and stiffness, and improving transparency. [Solution] Provided is an ethylene-?-olefin copolymer having a specific MFR, a specific density, and a specific molecular weight distribution, containing a suitable amount of a long-chain branching structure characterized by a branching index, and having a specific composition distribution structure characterized by solvent fractionation behavior.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 4, 2018
    Assignee: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki Ishihama, Ryotaro Harada, Masaru Aoki, Kenji Iiba, Kazushi Kodama, Hiroto Hayashi
  • Ethylene-?-olefin copolymer and olefin resin composition
    Patent number: 9963525
    Abstract: [Problem] To provide an ethylene-?-olefin copolymer having high mechanical strength and good molding properties. [Solution] Provided is an ethylene-?-olefin copolymer having a specific MFR, a specific density, and a specific molecular weight distribution, containing a suitable amount of a long-chain branching structure characterized by a branching index, and having a specific composition distribution structure characterized by solvent fractionation behavior.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 8, 2018
    Assignee: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki Ishihama, Ryotaro Harada, Masaru Aoki, Kenji Iiba, Kazushi Kodama, Hiroto Hayashi
  • ETHYLENE-a-OLEFIN COPOLYMER AND OLEFIN RESIN COMPOSITION
    Publication number: 20170114165
    Abstract: [Problem] To provide an ethylene-?-olefin copolymer having high mechanical strength and good molding properties. [Solution] Provided is an ethylene-?-olefin copolymer having a specific MFR, a specific density, and a specific molecular weight distribution, containing a suitable amount of a long-chain branching structure characterized by a branching index, and having a specific composition distribution structure characterized by solvent fractionation behavior.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 27, 2017
    Applicant: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki ISHIHAMA, Ryotaro HARADA, Masaru AOKI, Kenji IIBA, Kazushi KODAMA, Hiroto HAYASHI
  • ETHYLENE-A-OLEFIN COPOLYMER AND OLEFIN RESIN COMPOSITION
    Publication number: 20170101491
    Abstract: [Problem] To provide an ethylene-?-olefin copolymer that is highly effective in improving the molding properties of polyolefin resins and at the same time highly effective improving the balance between impact strength and stiffness. [Solution] Provided is an ethylene-?-olefin copolymer having a specific MFR, a specific density, and a specific molecular weight distribution, containing a suitable amount of a long-chain branching structure characterized by a branching index, and having a specific composition distribution structure characterized by solvent fractionation behavior.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 13, 2017
    Applicant: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki ISHIHAMA, Ryotaro HARADA, Masaru AOKI, Kenji IIBA, Kazushi KODAMA, Hiroto HAYASHI
  • ETHYLENE-a-OLEFIN COPOLYMER AND OLEFIN RESIN COMPOSITION
    Publication number: 20170101490
    Abstract: [Problem] To provide an ethylene-?-olefin copolymer that is highly effective in improving the molding properties of polyolefin resins, improving the balance between impact strength and stiffness, and improving transparency. [Solution] Provided is an ethylene-?-olefin copolymer having a specific MFR, a specific density, and a specific molecular weight distribution, containing a suitable amount of a long-chain branching structure characterized by a branching index, and having a specific composition distribution structure characterized by solvent fractionation behavior.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 13, 2017
    Applicant: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki ISHIHAMA, Ryotaro HARADA, Masaru AOKI, Kenji IIBA, Kazushi KODAMA, Hiroto HAYASHI