Patents by Inventor Hyeong Cheol PARK

Hyeong Cheol PARK 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).

  • Solid catalyst for propylene polymerization and method of producing block copolymer using the same
    Patent number: 11427657
    Abstract: The present invention relates to a solid catalyst for propylene polymerization and a method of producing a propylene polymer or copolymer using the solid catalyst for propylene polymerization, and provides a solid catalyst which prepares a dialkoxymagnesium carrier and is formed of a carrier produced through a reaction of the carrier with a metal halide, a titanium halide, an organic electron donor, etc., and a method of producing a propylene polymer or copolymer through copolymerization of propylene-alpha olefin using the solid catalyst, wherein the dialkoxymagnesium carrier has an uniform particle size range of 10 to 100 ?m and a spherical particle shape by adjusting injection amounts, injection numbers, and reaction temperatures of metal magnesium, alcohol and a reaction initiator during a reaction process of metal magnesium and alcohol.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 30, 2022
    Assignee: HANWHA TOTAL PETROCHEMICAL CO., LTD.
    Inventors: Young Joo Lee, Eun Il Kim, Hyeong Cheol Park, Su Min Ko
  • Solid Catalyst For Propylene Polymerization And Method Of Producing Block Copolymer Using The Same
    Publication number: 20200199266
    Abstract: The present invention relates to a solid catalyst for propylene polymerization and a method of producing a propylene polymer or copolymer using the solid catalyst for propylene polymerization, and provides a solid catalyst which prepares a dialkoxymagnesium carrier and is formed of a carrier produced through a reaction of the carrier with a metal halide, a titanium halide, an organic electron donor, etc., and a method of producing a propylene polymer or copolymer through copolymerization of propylene-alpha olefin using the solid catalyst, wherein the dialkoxymagnesium carrier has an uniform particle size range of 10 to 100 ?m and a spherical particle shape by adjusting injection amounts, injection numbers, and reaction temperatures of metal magnesium, alcohol and a reaction initiator during a reaction process of metal magnesium and alcohol.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Inventors: Young Joo LEE, Eun Il KIM, Hyeong Cheol PARK, Su Min KO
  • AN ISOLATED GENE EXPRESSED IN RESPONSE TO HEAT TREATMENT IN KOREAN FIR OF ABIES GENUS
    Publication number: 20190309375
    Abstract: The present invention relates to a genome-wide analysis of gene expression levels of the Korean fir of Abies genus. More specifically, the present invention relates to the isolated genes expressed in response to heat treatment using a next generation sequencing-based platform.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 10, 2019
    Inventors: Hyeong Cheol PARK, Jung Eun HWANG