Patents by Inventor Hyeon Mun JEONG

Hyeon Mun 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 and molded article produced therefrom
    Patent number: 11661505
    Abstract: A thermoplastic resin composition of the present invention is characterized by including: about 100 parts by weight of a polyolefin resin; about 10-80 parts by weight of a flame retardant other than sodium phosphate; about 1-25 parts by weight of zinc oxide having an average particle size of about 0.2-3 ?m and a specific surface area BET of about 1-10 m2/g; and about 1-50 parts by weight of sodium phosphate. The thermoplastic resin composition has excellent antibacterial properties, flame retardant properties, chemical-resistant antibacterial properties, and the like.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 30, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Jee Kwon Park, Cheon Seok Yang, Hyeon Mun Jeong, Ju Sung Kim, Jin Seong Lee
  • Thermoplastic Resin Composition and Molded Article Manufactured Therefrom
    Publication number: 20220411616
    Abstract: A thermoplastic resin composition of the present invention is characterized by comprising: about 100 parts by weight of a polyolefin resin including one or more of a polypropylene resin and an ethylene-propylene block copolymer; about 10 parts by weight to about 60 parts by weight of a phosphorus nitrogen-based flame retardant; about 0.05 parts by weight to about 10 parts by weight of a maleic anhydride-modified olefin-based polymer; and about 5 parts by weight to about 40 parts by weight of talc having a calcium content of about 0.1% by weight or less. The thermoplastic resin composition has excellent flame retardancy, impact resistance, rigidity, molding processability, etc.
    Type: Application
    Filed: November 18, 2020
    Publication date: December 29, 2022
    Inventors: Seon Ae LEE, Yoen Kyoung KIM, Jee Kwon PARK, Hyeon Mun JEONG
  • Thermoplastic Resin Composition and Molded Product Manufactured Therefrom
    Publication number: 20220275194
    Abstract: A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of an ethylene-propylene block copolymer; approximately 0.3-5 parts by weight of metal phosphinate compound; approximately 0.5-5 parts by weight of a phosphorus-nitrogen-based retardant; and approximately 0.01-0.2 parts by weight of a bromine-based retardant. The thermoplastic resin composition has excellent flame retardancy, impact resistance, and the like.
    Type: Application
    Filed: September 24, 2020
    Publication date: September 1, 2022
    Inventors: Jee Kwon PARK, Hyeon Mun JEONG, Yoen Kyoung KIM, Seon Ae LEE
  • Thermoplastic Resin Composition and Molded Article Produced Therefrom
    Publication number: 20210340366
    Abstract: A thermoplastic resin composition of the present invention is characterized by including: about 100 parts by weight of a polyolefin resin; about 10-80 parts by weight of a flame retardant other than sodium phosphate; about 1-25 parts by weight of zinc oxide having an average particle size of about 0.2-3 ?m and a specific surface area BET of about 1-10 m2/g; and about 1-50 parts by weight of sodium phosphate. The thermoplastic resin composition has excellent antibacterial properties, flame retardant properties, chemical-resistant antibacterial properties, and the like.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 4, 2021
    Inventors: Jee Kwon PARK, Cheon Seok YANG, Hyeon Mun JEONG, Ju Sung KIM, Jin Seong LEE