Patents by Inventor Kyu Seong JEONG

Kyu Seong 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).

  • Thermoplastic resin composition
    Patent number: 11359086
    Abstract: Provided is a thermoplastic resin composition which comprises: a first copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a second copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a third copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; a fourth copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; and a fifth copolymer comprising maleimide-based units, aromatic vinyl-based units, and vinyl cyan-based units, wherein the first and second copolymers comprise alkyl acrylate-based rubber polymers with mutually different average particle sizes, and the third and fourth copolymers have mutually different weight average molecular weights.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 14, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Tae Hoon Kim, Seong Lyong Kim, Kyung Jae Kwon, Joon Hwi Jo, Kyu Seong Jeong
  • THERMOPLASTIC RESIN COMPOSITION
    Publication number: 20200283614
    Abstract: Provided is a thermoplastic resin composition which comprises: a first copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a second copolymer comprising an alkyl acrylate-based rubber polymer, aromatic vinyl-based units, and vinyl cyan-based units; a third copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; a fourth copolymer comprising aromatic vinyl-based units and vinyl cyan-based units; and a fifth copolymer comprising maleimide-based units, aromatic vinyl-based units, and vinyl cyan-based units, wherein the first and second copolymers comprise alkyl acrylate-based rubber polymers with mutually different average particle sizes, and the third and fourth copolymers have mutually different weight average molecular weights.
    Type: Application
    Filed: November 29, 2018
    Publication date: September 10, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Tae Hoon KIM, Seong Lyong KIM, Kyung Jae KWON, Joon Hwi JO, Kyu Seong JEONG