Patents by Inventor Yongbok JEONG

Yongbok JEONG 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).

  • PROCESS OF RECOVERING ALKALI METAL SULFATE
    Publication number: 20250033987
    Abstract: The present invention relates to a process of recovering an alkali metal sulfate, comprising: forming an organic acid fermentation liquid containing an alkali metal salt of organic acid; and adding sulfuric acid to the organic acid fermentation liquid to form and recover an alkali metal sulfate, wherein the alkali metal sulfate has a radioactivity concentration index of 1 or less, and to an alkali metal sulfate crystal comprising a predetermined peak in an X-ray diffraction spectrum (XRD) and having a radioactivity concentration index of 1 or less.
    Type: Application
    Filed: November 29, 2022
    Publication date: January 30, 2025
    Applicant: LG CHEM, LTD.
    Inventors: Sang Won HAN, Sangbum AHN, Yongbok JEONG, Woochul JUNG, Si Min KIM, Jimyeong KIM, Taeho KIM, Donggyun KANG
  • 3-HYDROXYPROPIONATE CRYSTAL, PREPARATION METHOD OF THE SAME AND PROCESS OF RECOVERING 3-HYDROXYPROPIONIC ACID
    Publication number: 20240417364
    Abstract: The present invention relates to a 3-hydroxypropionate crystal which comprises an alkali metal salt of 3-hydroxypropionic acid or a hydrate thereof, and comprises a first peak at a predetermined diffraction angle (2?±0.2°) in an X-ray diffraction spectrum (XRD), a method for preparing the same, and a process of recovering 3-hydroxypropionic acid.
    Type: Application
    Filed: November 29, 2022
    Publication date: December 19, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Sangbum AHN, Woochul JUNG, Sang Won HAN, Yongbok JEONG, Seung A WOO, Jimyeong KIM
  • METHOD FOR PRODUCING ACRYLIC ACID
    Publication number: 20240383837
    Abstract: The present invention provides a method for producing acrylic acid comprising thermally decomposing a poly(3-hydroxypropionate) in the presence of a predetermined transition metal oxide to produce acrylic acid.
    Type: Application
    Filed: May 31, 2023
    Publication date: November 21, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Si Min KIM, Donggyun KANG, Woochul JUNG, Yongbok JEONG
  • POLY(LACTIC ACID-B-3-HYDROXYPROPIONIC ACID) BLOCK COPOLYMER AND METHOD FOR PREPARATION THEREOF
    Publication number: 20240343858
    Abstract: A poly(lactic acid-b-3-hydroxypropionic acid) block copolymer characterized in that mechanical properties of the block copolymer are excellent by introducing a lactide optical isomer-derived repeating unit and a poly(3-hydroxypropionic acid) repeating unit at the same time, and thus its application fields can be expanded.
    Type: Application
    Filed: August 24, 2022
    Publication date: October 17, 2024
    Inventors: Harim JEON, Jung Yun CHOI, Dongcheol CHOE, Chul Woong KIM, Yulliana KIM, Suhyun CHO, Yongbok JEONG, Hokeun LEE
  • PROCESS OF RECOVERING ALKALI METAL SALT HYDRATE AND 3-HYDROXYPROPIONIC ACID
    Publication number: 20240279692
    Abstract: The present invention relates to a process of recovering alkali metal salt hydrate and 3-hydroxypropionic acid, comprising: forming and separating 3-hydroxypropionic acid salt crystal from a concentrate containing 3-hydroxypropionic acid in the presence of an alkali metal salt; and adding an acid to the aqueous solution containing the separated 3-hydroxypropionic acid salt crystal to form and separate an alkali metal salt hydrate and 3-hydroxypropionic acid.
    Type: Application
    Filed: November 29, 2022
    Publication date: August 22, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Sang Won HAN, Taeho KIM, Yongbok JEONG, Sangbum AHN, Woochul JUNG, Donggyun KANG, Si Min KIM, Jimyeong KIM, Yongju BANG, Jeong Eun KIM, Jae Hoon CHOE