Patents by Inventor Seong Jang JEON

Seong Jang JEON 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).

  • Method of synthesizing hydrocarbon polymers using deoxygenation
    Patent number: 11555086
    Abstract: The present invention relates to a method of synthesizing hydrocarbon polymers using a deoxygenation reaction, wherein, by deoxygenating polymers including oxygen atom-containing functional groups in side chains thereof to thereby remove the functional groups of the side chains, various block copolymers including polyolefins and hydrocarbon polymers with complex architectures can be synthesized.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: January 17, 2023
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Myungeun Seo, Chung Sub Jeon, Sukbok Chang, Dong Wook Kim, Taeseok Oh, Seong Jang Jeon
  • Dope solution for preparing optical film and optical film using the same
    Patent number: 11421060
    Abstract: Provided are a dope solution for preparing a polarizing plate protective film by a solution casting method using an acrylic polymer with high thermal resistance and high molecular weight, and a polarizing plate protective film using the same. The polarizing plate protective film using the dope solution according to the present invention has excellent optical properties, high tensile strength, low hygroscopic properties, and high thermal resistance, and thus, has the effects of excellent dimensional stability, and excellent adhesion with a polyvinyl alcohol film.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: August 23, 2022
    Assignee: LG MMA CORP.
    Inventors: Sung Il Park, Seong Jang Jeon, Sang Seok Park, Eun Jin Jeon, Sang Eob Na
  • METHOD OF SYNTHESIZING HYDROCARBON POLYMERS USING DEOXYGENATION
    Publication number: 20210032395
    Abstract: The present invention relates to a method of synthesizing hydrocarbon polymers using a deoxygenation reaction, wherein, by deoxygenating polymers including oxygen atom-containing functional groups in side chains thereof to thereby remove the functional groups of the side chains, various block copolymers including polyolefins and hydrocarbon polymers with complex architectures can be synthesized.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 4, 2021
    Inventors: Myungeun SEO, Chung Sub Jeon, Sukbok Chang, Dong Wook Kim, Taeseok Oh, Seong Jang Jeon
  • DOPE SOLUTION FOR PREPARING OPTICAL FILM AND OPTICAL FILM USING THE SAME
    Publication number: 20190218322
    Abstract: Provided are a dope solution for preparing a polarizing plate protective film by a solution casting method using an acrylic polymer with high thermal resistance and high molecular weight, and a polarizing plate protective film using the same. The polarizing plate protective film using the dope solution according to the present invention has excellent optical properties, high tensile strength, low hygroscopic properties, and high thermal resistance, and thus, has the effects of excellent dimensional stability, and excellent adhesion with a polyvinyl alcohol film.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventors: SUNG IL PARK, SEONG JANG JEON, SANG SEOK PARK, EUN JIN JEON, SANG EOB NA
  • RESIN COMPOSITION FOR OPTICAL FILM, OPTICAL FILM FORMED USING SAME, AND POLARIZING PLATE AND IMAGE DISPLAY DEVICE COMPRISING SAME
    Publication number: 20160245970
    Abstract: The present invention relates to a copolymer resin composition formed by polymerizing an alkyl methacrylate-based monomer, a styrene-based monomer, a phenylmaleimide-based monomer and an alkyl acrylate-based monomer and to an optical film formed using the copolymer resin composition. The resin composition of the present invention may reduce odors which may be generated during the film extrusion and have a good thermal resistance and thermal stability.
    Type: Application
    Filed: September 29, 2014
    Publication date: August 25, 2016
    Inventors: Jun Geun UM, Sung II PARK, Seong Jang JEON, Nam Jeong LEE, Sei Jung PARK, Tae Sung PARK, Cheol Ho KIM, Eun Jin JEON