Patents by Inventor Eun Byeol SEO

Eun Byeol SEO 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).

  • Publication number: 20250002613
    Abstract: The present invention relates to a method of preparing a vinyl chloride-based polymer in a polymerization device including: a polymerization reactor; a reflux condenser connected to the polymerization reactor; and a recovery pipe connected to the reflux condenser, the method including: initiating a polymerization by adding a first vinyl chloride-based monomer and an initiator into the polymerization reactor; and recovering a second vinyl chloride-based monomer from the polymerization reactor through the recovery pipe, and performing a polymerization while adding a third vinyl chloride-based monomer into the polymerization reactor, wherein a content of the initiator is 0.105 to 0.110 parts by weight based on 100 parts by weight of a content of the first vinyl chloride-based monomer.
    Type: Application
    Filed: May 12, 2023
    Publication date: January 2, 2025
    Applicant: LG CHEM, LTD.
    Inventors: Heung Kwon BAE, Se Woong LEE, Eun Byeol SEO, Hyun Kyou HA, Kun Ji KIM
  • Publication number: 20240400760
    Abstract: The present invention provides a polyamic acid aqueous solution composition capable of polymerizing polyamic acid in water rather than in an organic solvent, as well as achieving a high imidization rate during low-temperature curing.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 5, 2024
    Inventors: Jong Chan WON, Yun Ho KIM, No Kyun PARK, Yu Jin SO, Jin Soo KIM, Jong Min PARK, Sung Mi YOO, Yi Young KANG, Hyun Jin PARK, Yu Mi HA, Ji Yun CHUNG, Hyun Tae LIM, Eun Byeol SEO, Ji Won LEE, Hyun Jeong AHN
  • Publication number: 20240352193
    Abstract: The present application provides a polyamic acid aqueous solution composition prepared of a polyimide, wherein the composition enables the polymerization of hydrophobic-based monomers into a polyamic acid in water and is improved in transparency, eco-friendliness, storage stability, and the like when cured.
    Type: Application
    Filed: May 27, 2022
    Publication date: October 24, 2024
    Inventors: Jong Chan WON, Yun Ho KIM, No Kyun PARK, Yu Jin SO, Jin Soo KIM, Jong Min PARK, Sung Mi YOO, Hyun Jin PARK, Hyun Jeong AHN, Jin Ha HA, Sun Kyu KIM, Hyo Eun LEE, Eun Byeol SEO, Eun Bee CHO, Kyung Eun KIM