Patents by Inventor Dong-Gyu JEON

Dong-Gyu JEON 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).

  • Patent number: 9688802
    Abstract: The present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer having an improved mechanical property and heat resistance, and a method for preparing the same. More particularly, the present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer, which includes an ethylene-aliphatic diene copolymer as a soft segment and a polystyrene-based polymer grafted to the soft segment as a hard segment, and a method for preparing the same. The poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer has elasticity equivalent to that of SBS or SEBS, and improved mechanical properties such as tensile strength and heat resistance, thereby being used as a substituent for SBS or SEBS.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: June 27, 2017
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Dong Hyun Kim, No Hyung Park, Jung Soo Kim, Dong Gyu Jeon
  • Patent number: 9580531
    Abstract: Disclosed is a poly(ethylene-aliphatic diene) copolymer having superior miscibility, adhesivity, printability and scratch resistance, compared to conventional TPO based TPEs or SBC TPEs, by introducing a variety of functional groups to an end portion of the ethylene-aliphatic diene copolymer such that the poly(ethylene-aliphatic diene) copolymer may be utilized in a variety of fields, and a method thereof.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: February 28, 2017
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Dong-Hyun Kim, Jung-Soo Kim, Dong-Jin Yang, Dong-Gyu Jeon
  • Patent number: 9540466
    Abstract: The present invention relates to a highly elastic, ethylene-based quaterpolymer and a preparation method thereof. More particularly, the present invention relates to a highly elastic, ethylene-based quaterpolymer which comprises a specific molar ratio of an ethylene unit, a C4-6 ?-olefin unit, a C8-12 ?-olefin unit and at least one functional unit derived from a styrene-based monomer and to a method for preparing the ethylene-based quaterpolymer using a metallocene catalyst.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: January 10, 2017
    Assignee: Korea Institute of Industrial Technology
    Inventors: Dong Hyun Kim, Jung Soo Kim, Dong Gyu Jeon, Ji Hoon Jang
  • Publication number: 20160251464
    Abstract: The present invention relates to a highly elastic, ethylene-based quaterpolymer and a preparation method thereof. More particularly, the present invention relates to a highly elastic, ethylene-based quaterpolymer which comprises a specific molar ratio of an ethylene unit, a C4-6 ?-olefin unit, a C8-12 ?-olefin unit and at least one functional unit derived from a styrene-based monomer and to a method for preparing the ethylene-based quaterpolymer using a metallocene catalyst.
    Type: Application
    Filed: April 8, 2015
    Publication date: September 1, 2016
    Inventors: Dong Hyun Kim, Jung Soo Kim, Dong Gyu Jeon, Ji Hoon Jang
  • Publication number: 20160168301
    Abstract: The present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer having an improved mechanical property and heat resistance, and a method for preparing the same. More particularly, the present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer, which includes an ethylene-aliphatic diene copolymer as a soft segment and a polystyrene-based polymer grafted to the soft segment as a hard segment, and a method for preparing the same. The poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer has elasticity equivalent to that of SBS or SEBS, and improved mechanical properties such as tensile strength and heat resistance, thereby being used as a substituent for SBS or SEBS.
    Type: Application
    Filed: May 23, 2014
    Publication date: June 16, 2016
    Inventors: Dong Hyun KIM, No Hyung PARK, Jung Soo KIM, Dong Gyu JEON
  • Publication number: 20150119532
    Abstract: Disclosed is a poly(ethylene-aliphatic diene) copolymer having superior miscibility, adhesivity, printability and scratch resistance, compared to conventional TPO based TPEs or SBC TPEs, by introducing a variety of functional groups to an end portion of the ethylene-aliphatic diene copolymer such that the poly(ethylene-aliphatic diene) copolymer may be utilized in a variety of fields, and a method thereof.
    Type: Application
    Filed: August 29, 2014
    Publication date: April 30, 2015
    Inventors: Dong-Hyun KIM, Jung-Soo KIM, Dong-Jin YANG, Dong-Gyu JEON