Patents by Inventor Eun Jung HEO

Eun Jung HEO 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).

  • Polyolefin and method for preparing same
    Patent number: 12187824
    Abstract: A polyolefin and a method for preparing same are provided. The polyolefin is formed by copolymerizing an olefin-based monomer and a comonomer in the presence of an olefin polymerization catalyst comprising a transition metal compound for an olefin polymerization catalyst represented by formula 1, and the weight average molecular weight (Mw) thereof may be 20,000 or less. The description of formula 1 is the same as that in the description of the invention.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: January 7, 2025
    Assignee: HANWHA SOLUTIONS CORPORATION
    Inventors: Na Yeun Kim, Sung Hae Jun, Eun Jung Heo, Ji Sung Kim
  • POLYOLEFIN AND METHOD FOR PREPARING SAME
    Publication number: 20210395412
    Abstract: A polyolefin and a method for preparing same are provided. The polyolefin is formed by copolymerizing an olefin-based monomer and a comonomer in the presence of an olefin polymerization catalyst comprising a transition metal compound for an olefin polymerization catalyst represented by formula 1, and the weight average molecular weight (Mw) thereof may be 20,000 or less. The description of formula 1 is the same as that in the description of the invention.
    Type: Application
    Filed: September 17, 2019
    Publication date: December 23, 2021
    Inventors: Na Yeun KIM, Sung Hae JUN, Eun Jung HEO, Ji Sung KIM
  • METALLOCENE CATALYST SYSTEM COMPRISING ANTISTATIC AGENT AND METHOD FOR PREPARING POLYOLEFIN USING THE SAME
    Publication number: 20160297902
    Abstract: The present invention relates to a metallocene catalyst system comprising an antistatic agent and a preparation method for polyolefin using the same. The present invention can not only maintain the inherent activity of the catalyst but also minimize reactor fouling and particle agglomeration in the preparation of a polyolefin using the gas-phase polymerization process, thereby allowing to the process to be operational with more stability.
    Type: Application
    Filed: April 2, 2014
    Publication date: October 13, 2016
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Hyun Seung LEE, Jun Ho SEO, Dong Wook JEONG, Eun Jung HEO