Patents by Inventor Sugil YUM

Sugil YUM 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).

  • Polycarbonate resin composition and article including the same
    Patent number: 11859047
    Abstract: Provided is a polycarbonate resin composition and a molded product comprising same. The polycarbonate resin composition comprises a linear polycarbonate resin, a branched polycarbonate resin, a fluorinated sulfonate-based metal salt, a phenyl methyl silicone oil, and a phenyl methyl silicone resin. The linear polycarbonate resin and branched polycarbonate resin include a repeating unit of the following Chemical Formula 1: wherein in Chemical Formula 1: R1 to R4 are each independently hydrogen, C1-10 alkyl, C1-10 alkoxy, or halogen; and Z is C1-10 alkylene unsubstituted or substituted with phenyl, C3-15 cycloalkylene unsubstituted or substituted with C1-10 alkyl, O, S, SO, SO2, or CO.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: January 2, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Hyong Min Bahn, Un Ko, Jungmoon Bae, Daehyeon Hwang, Mooho Hong, Sugil Yum
  • POLYCARBONATE COMPOSITION AND MOLDED ARTICLES THEREOF
    Publication number: 20230212390
    Abstract: The present disclosure relates to a polycarbonate composition. The polycarbonate composition is a composition in which polyalkylene glycol end-capped with a specific compound is blended in polycarbonate together with two specific antioxidants in a predetermined amount, and can provide a molded article which has high light transmittance, is transparent and particularly has excellent long-term color stability.
    Type: Application
    Filed: October 21, 2021
    Publication date: July 6, 2023
    Inventors: Hyong Min BAHN, Un KO, Cheol Jun SONG, Jeeseon KIM, Jaemyeng JEONG, Hanbit JANG, Sugil YUM, Mooho HONG, Jungmoon BAE
  • POLYCARBONATE RESIN COMPOSITION AND ARTICLE INCLUDING THE SAME
    Publication number: 20210371584
    Abstract: Provided is a polycarbonate resin composition and a molded product comprising same. The polycarbonate resin composition comprises a linear polycarbonate resin, a branched polycarbonate resin, a fluorinated sulfonate-based metal salt, a phenyl methyl silicone oil, and a phenyl methyl silicone resin. The linear polycarbonate resin and branched polycarbonate resin include a repeating unit of the following Chemical Formula 1: wherein in Chemical Formula 1: R1 to R4 are each independently hydrogen, C1-10 alkyl, C1-10 alkoxy, or halogen; and Z is C1-10 alkylene unsubstituted or substituted with phenyl, C3-15 cycloalkylene unsubstituted or substituted with C1-10 alkyl, O, S, SO, SO2, or CO.
    Type: Application
    Filed: November 6, 2019
    Publication date: December 2, 2021
    Inventors: Hyong Min BAHN, Un KO, Jungmoon BAE, Daehyeon HWANG, Mooho HONG, Sugil YUM