Patents by Inventor Young Cheol Jung

Young Cheol Jung 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).

  • Pore-filled ion exchange polyelectrolyte composite membrane from which surface ion exchange polyelectrolyte has been removed and method for manufacturing same
    Patent number: 11975296
    Abstract: A pore-filled ion exchange polyelectrolyte composite membrane from which the surface ion exchange polyelectrolyte has been removed and a method of manufacturing the same are provided. The ion exchange polyelectrolyte composite membrane exhibits low film resistance and low in-plane-direction swelling degree, and has a smaller film-thickness than a commercial film, and thus, can be used for various purposes. In addition, since the pore-filled ion exchange polyelectrolyte composite membrane is continuously manufactured through a roll-to-roll process, the manufacturing process is simple, and manufacturing costs can be greatly reduced.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 7, 2024
    Assignee: Toray Advanced Materials Korea Inc.
    Inventors: Young Woo Choi, Mi Soon Lee, Tae Young Kim, Young Gi Yoon, Beom Jun Kim, Min Ho Seo, Chi Young Jung, Jong Min Lee, Nam-jo Jeong, Seung Cheol Yang, Ji Yeon Choi
  • PREPARATION METHOD OF SUPER ABSORBENT POLYMER
    Publication number: 20220242990
    Abstract: The present disclosure relates to a preparation method of a super absorbent polymer. More specifically, it relates to a preparation method of a super absorbent polymer capable of significantly reducing the amount of fine powder generated during the process by mixing a hydrogel polymer with an additive having a specific structure, pulverizing it, and then drying it with a paddle-type dryer.
    Type: Application
    Filed: January 20, 2021
    Publication date: August 4, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Yoon Jae MIN, Gicheul KIM, Young Cheol JUNG, Wonchan PARK
  • Chute type monomer dispenser
    Patent number: 10967347
    Abstract: A chute type monomer dispenser is provided in the present disclosure. The chute type monomer dispenser includes a chute dispenser installed to be slanted in a direction of a polymerization apparatus, the chute dispenser is configured to inject a monomer to the polymerization apparatus through an injection pipe having an injection portion having an opening at an upper portion of the chute dispenser; and an injector configured to inject an initiator and a foaming agent to the injection portion.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: April 6, 2021
    Inventors: Sunyoung Kim, Young Cheol Jung, Ye Hoon Im, Youngsoo Song, Kyunghoon Min
  • Chute Type Monomer Dispenser
    Publication number: 20210001295
    Abstract: A chute type monomer dispenser is provided in the present disclosure. The chute type monomer dispenser includes a chute dispenser installed to be slanted in a direction of a polymerization apparatus, the chute dispenser is configured to inject monomer to the polymerization apparatus through an injection pipe having an injection portion having an opening at an upper portion of the chute dispenser; and an injector configured to inject an initiator and a foaming agent to the injection portion.
    Type: Application
    Filed: October 12, 2018
    Publication date: January 7, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Sunyoung Kim, Young Cheol Jung, Ye Hoon Im, Youngsoo Song, Kyunghoon Min