Patents by Inventor Choel-han Gang

Choel-han Gang 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).

  • Polymer particles having polymer brush and method of preparing the same
    Patent number: 8841385
    Abstract: The present invention provides a method of preparing a polymer particle. More precisely, the invention provides a polymer particle having optimum impact strength and improved elastic recovery rate by forming the brush having softness on the surface of the monodisperse polymer particle by the anion dispersion polymerization using a conjugated diene monomer.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 23, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Bo-ryeong Han, Moon-seok Chun, Do-yeon Park, Su-kyung Kim, Chong-min Koo, Bum-jae Lee, Choel-han Gang
  • Polymer particles having polymer brush and method of preparing the same
    Patent number: 8415436
    Abstract: The present invention provides a polymer particle and a method of preparing the same. More precisely, the invention provides a polymer particle having optimum impact strength and improved elastic recovery rate by forming the brush having softness on the surface of the monodisperse polymer particle by the anion dispersion polymerization using a conjugated diene monomer.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: April 9, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Bo-ryeong Han, Moon-seok Chun, Do-yeon Park, Su-kyung Kim, Chong-min Koo, Bum-jae Lee, Choel-han Gang
  • POLYMER PARTICLES HAVING POLYMER BRUSH AND METHOD OF PREPARING THE SAME
    Publication number: 20100010160
    Abstract: The present invention provides a polymer particle and a method of preparing the same. More precisely, the invention provides a polymer particle having optimum impact strength and improved elastic recovery rate by forming the brush having softness on the surface of the monodisperse polymer particle by the anion dispersion polymerization using a conjugated diene monomer.
    Type: Application
    Filed: November 19, 2007
    Publication date: January 14, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Bo-ryeong Han, Moon-seok Chun, Do-yeon Park, Su-kyung Kim, Chong-min Koo, Bum-jae Lee, Choel-han Gang