Patents by Inventor Kap-Ku Kang

Kap-Ku Kang 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 for preparing solid catalysts for ethylene polymerization and copolymerization
    Patent number: 7718565
    Abstract: The present invention relates to a method for preparing a solid catalyst for ethylene polymerization and/or copolymerization. More specifically, the present invention relates to a solid titanium catalyst supported in a magnesium support which has an extremely high catalytic activity, advantageous catalyst shape and a simple preparation process, capable of producing a polymer with a high bulk density, a narrow and uniform particle size distribution and a broad molecular weight distribution, and a method for preparation of the same. A silicon-containing magnesium compound is prepared by reacting an electron donor such as a silicon compound containing an alkoxy group of Formula 1, a silicon compound containing an alkoxy group of Formula 2, or a mixture thereof in a magnesium compound solution, and reacted with a titanium compound to obtain the solid catalyst of the present invention.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: May 18, 2010
    Assignee: Korea Petrochemical Ind. Co., Ltd.
    Inventors: Kap-Ku Kang, Byung-Ju Park, Jae-Kwon Jang, Young-Tae Jeong
  • Method for Preparing Solid Catalysts for Ethylene Polymerization and Copolymerization
    Publication number: 20070259777
    Abstract: The present invention relates to a method for preparing a solid catalyst for ethylene polymerization and/or copolymerization. More specifically, the present invention relates to a solid titanium catalyst supported in a magnesium support which has an extremely high catalytic activity, advantageous catalyst shape and a simple preparation process, capable of producing a polymer with a high bulk density, a narrow and uniform particle size distribution and a broad molecular weight distribution, and a method for preparation of the same. A silicon-containing magnesium compound is prepared by reacting an electron donor such as a silicon compound containing an alkoxy group of Formula 1, a silicon compound containing an alkoxy group of Formula 2, or a mixture thereof in a magnesium compound solution, and reacted with a titanium compound to obtain the solid catalyst of the present invention.
    Type: Application
    Filed: October 14, 2005
    Publication date: November 8, 2007
    Applicant: KOREA PETROCHEMICAL IND. CO., LTD.
    Inventors: Kap-Ku Kang, Byung-Ju Park, Jae-Kwon Jang, Young-Tae Jeong