Patents by Inventor Su Jin GWON

Su Jin GWON 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).

  • Symmetrical polyolefin block copolymer and preparation method therefor
    Patent number: 11965051
    Abstract: The present invention relates to a method for preparing a polyolefin block copolymer, the method comprising: a first step of coordination polymerization of an olefin monomer with a transition metal catalyst in the presence of organozinc; and a second step of continuously adding a diacyl peroxide compound to perform polymerization, and to a polyolefin block copolymer prepared therefrom.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 23, 2024
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Bun Yeoul Lee, Sung Dong Kim, Su Jin Gwon, Tae Hee Kim
  • SYMMETRICAL POLYOLEFIN BLOCK COPOLYMER AND PREPARATION METHOD THEREFOR
    Publication number: 20210371570
    Abstract: The present invention relates to a method for preparing a polyolefin block copolymer, the method comprising: a first step of coordination polymerization of an olefin monomer with a transition metal catalyst in the presence of organozinc; and a second step of continuously adding a diacyl peroxide compound to perform polymerization, and to a polyolefin block copolymer prepared therefrom.
    Type: Application
    Filed: December 21, 2018
    Publication date: December 2, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Bun Yeoul LEE, Sung Dong KIM, Su Jin GWON, Tae Hee KIM
  • Bisphosphine ligand compound, chromium compound, ethylene oligomerization catalyst system, and ethylene oligomer preparation method
    Patent number: 11148127
    Abstract: The present invention relates to a bisphosphine ligand compound, a chromium compound prepared using same, an ethylene oligomerization catalyst system containing the chromium compound, and an ethylene oligomer preparing method, wherein the bisphosphine ligand compound is suitable for mass production and commercial processes, allows extremely high activity to be compatible with excellent economical benefit, and increases selectivity for ethylene oligomerization reaction, thereby being able to be used to manufacture 1-hexene and/or 1-octene at high yield.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 19, 2021
    Assignees: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, S-PRECIOUS CATALYSTS INC.
    Inventors: Bun Yeoul Lee, Tae Hee Kim, Hee Soo Park, Jun Won Baek, Su Jin Gwon, Sung Dong Kim
  • BISPHOSPHINE LIGAND COMPOUND, CHROMIUM COMPOUND, ETHYLENE OLIGOMERIZATION CATALYST SYSTEM, AND ETHYLENE OLIGOMER PREPARATION METHOD
    Publication number: 20210229084
    Abstract: The present invention relates to a bisphosphine ligand compound, a chromium compound prepared using same, an ethylene oligomerization catalyst system containing the chromium compound, and an ethylene oligomer preparing method, wherein the bisphosphine ligand compound is suitable for mass production and commercial processes, allows extremely high activity to be compatible with excellent economical benefit, and increases selectivity for ethylene oligomerization reaction, thereby being able to be used to manufacture 1-hexene and/or 1-octene at high yield.
    Type: Application
    Filed: June 3, 2019
    Publication date: July 29, 2021
    Applicants: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, S-PRECIOUS CATALYSTS INC
    Inventors: Bun Yeoul LEE, Tae Hee KIM, Hee Soo PARK, Jun Won BAEK, Su Jin GWON, Sung Dong KIM