Patents by Inventor Sung Il Myung

Sung Il Myung 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).

  • Rubber-modified vinyl-based graft copolymer, and thermoplastic resin composition including the same
    Patent number: 9382369
    Abstract: The present invention relates to a rubber-modified vinyl-based graft copolymer to which acrylic monomers containing a phenyl or phenoxy group are grafted in order to increase compatibility with a polycarbonate resin, and also relates to a thermoplastic resin composition including the rubber-modified vinyl-based graft copolymer. The thermoplastic resin composition according to the present invention can significantly improve appearance and high fluidity and can have high flowability and chemical resistance.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 5, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Ki Bo Chang, Jun Hwan Ahn, Sung Il Myung
  • ASA graft copolymer having superior shock resistance, weather resistance, coloring properties, and method for manufacturing same
    Patent number: 9340637
    Abstract: The present invention relates to an acrylonitrile-styrene-acrylate (ASA) graft copolymer having a core-shell structure, and a method for manufacturing the same, wherein the core of the ASA graft copolymer is a multi-core rubber copolymer in which alkyl acrylate monomers are sequentially polymerized, and the shell is formed by graft-polymerizing a styrene-based monomer and an acrylonitrile-based monomer with the core. The ASA graft copolymer resin is manufactured by the steps of manufacturing the multi-core rubber polymer latex by sequentially polymerizing the alkyl acrylate monomers; and forming a shell layer by graft-polymerizing the styrene-based monomer and the acrylonitrile-based monomer with the multi-core rubber polymer. The ASA resin composition according to the present invention has excellent impact resistance, weather resistance, and dyeability properties.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: May 17, 2016
    Assignee: Cheil Industries Inc.
    Inventors: Jun Hwan Ahn, Sung Il Myung, Il Jin Kim
  • ASA Graft Copolymer Having Superior Shock Resistance, Weather Resistance, Coloring Properties, and Method for Manufacturing Same
    Publication number: 20150011709
    Abstract: The present invention relates to an acrylonitrile-styrene-acrylate (ASA) graft copolymer having a core-shell structure, and a method for manufacturing the same, wherein the core of the ASA graft copolymer is a multi-core rubber copolymer in which alkyl acrylate monomers are sequentially polymerized, and the shell is formed by graft-polymerizing a styrene-based monomer and an acrylonitrile-based monomer with the core. The ASA graft copolymer resin is manufactured by the steps of manufacturing the multi-core rubber polymer latex by sequentially polymerizing the alkyl acrylate monomers; and forming a shell layer by graft-polymerizing the styrene-based monomer and the acrylonitrile-based monomer with the multi-core rubber polymer. The ASA resin composition according to the present invention has excellent impact resistance, weather resistance, and dyeability properties.
    Type: Application
    Filed: December 13, 2012
    Publication date: January 8, 2015
    Applicant: Cheil Industries Inc.
    Inventors: Jun Hwan Ahn, Sung Il Myung, Il Jin Kim
  • Rubber-Modified Vinyl-Based Graft Copolymer, and Thermoplastic Resin Composition Including the Same
    Publication number: 20130289198
    Abstract: The present invention relates to a rubber-modified vinyl-based graft copolymer to which acrylic monomers containing a phenyl or phenoxy group are grafted in order to increase compatibility with a polycarbonate resin, and also relates to a thermoplastic resin composition including the rubber-modified vinyl-based graft copolymer. The thermoplastic resin composition according to the present invention can significantly improve appearance and high fluidity and can have high flowability and chemical resistance.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Ki Bo CHANG, Jun Hwan AHN, Sung Il MYUNG
  • Dyes and methods of preparing them
    Patent number: 6734290
    Abstract: The present writing relates to a novel fiber-reactive dye of the formula wherein R11, D, R0, X and Z are as defined in the specification. The novel dye according to the present writing can be used in dyeing and printing fibre materials, especially, cellulosic fibre materials by a general fixing method, and a good adsorbing/fixing rate and an excellent fastness to light and wet treatment.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: May 11, 2004
    Assignee: Kyung-In Synthetic Corporation
    Inventors: Sung Yong Cho, Tae Chung Kang, Woo Jin Yoon, Sang Ki Yang, Sung Il Myung, Ho Lee
  • Dyes and methods of preparing them
    Publication number: 20040024189
    Abstract: The present writing relates to a novel fiber-reactive dye of the formula 1
    Type: Application
    Filed: May 29, 2003
    Publication date: February 5, 2004
    Inventors: Sung Yong Cho, Tae Chung Kang, Woo Jin Yoon, Sang Ki Yang, Sung Il Myung, Ho Lee