Patents by Inventor Hekuan Luo

Hekuan Luo 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).

  • Patent number: 6642325
    Abstract: The present invention relates to a silica gel-supported catalyst component suitable for ethylene (co)polymerization, a catalyst therefrom and use of the same. The catalyst component according to the present invention is obtained by supporting the reaction product of a titanium compound, a halide promoter, a magnesium compound and an electron donor on silica gel having a larger specific surface area. When the resultant catalyst is used for ethylene polymerization, especially gas phase fluidized bed polymerization, not only the activity is substantially enhanced, but also the hydrogen response and the copolymerizability of ethylene with other alpha-olefins are improved. The catalyst is especially suitable for the fluidized bed polymerization operated in a condensed state, with high quality LLDPE resins being obtained.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: November 4, 2003
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry
    Inventors: Hekuan Luo, Ruiguo Tang, Kejing Gao, Qinfang Zhao, Jingyan An, Hua Yang, Jinsheng Huo
  • Patent number: 6538078
    Abstract: The present invention relates to a highly active titanium based supported catalyst suitable for olefin (co)polymerization, preparation and use of the same. The catalyst according to the present invention is obtained by supporting a titanium based catalyst component containing a halide promoter on spherical silica. The resultant catalyst is excellent in its particle morphology and flowability, has highly catalytic activity, has excellent hydrogen response and has superior comonomer incorporation, the polymer prepared by using such a catalyst has its particle morphology further improved.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: March 25, 2003
    Assignees: China Petro-Chemical Corporation, Beijing Research Institute of Chemical Industry Sinopec
    Inventors: Hekuan Luo, Ruiguo Tang, Hua Yang, Qinfang Zhao
  • Publication number: 20020120078
    Abstract: The present invention relates to a highly active titanium based supported catalyst suitable for olefin (co)polymerization, preparation and use of the same. The catalyst according to the present invention is obtained by supporting a titanium based catalyst component containing a halide promoter on spherical silica. The resultant catalyst is excellent in its particle morphology and flowability, has highly catalytic activity, has excellent hydrogen response and has superior comonomer incorporation, the polymer prepared by using such a catalyst has its particle morphology further improved.
    Type: Application
    Filed: December 21, 2000
    Publication date: August 29, 2002
    Inventors: Hekuan Luo, Ruiguo Tang, Hua Yang, Qinfang Zhao
  • Publication number: 20020065378
    Abstract: The present invention relates to a silica gel-supported catalyst component suitable for ethylene (co)polymerization, a catalyst therefrom and use of the same. The catalyst component according to the present invention is obtained by supporting the reaction product of a titanium compound, a halide promoter, a magnesium compound and an electron donor on silica gel having a larger specific surface area. When the resultant catalyst is used for ethylene polymerization, especially gas phase fluidized bed polymerization, not only the activity is substantially enhanced, but also the hydrogen response, copolymerizability of ethylene with other alpha-olefins, and the like are improved. The catalyst is especially suitable for the fluidized bed polymerization operated in a condensed state, with high quality LLDPE resins being obtained.
    Type: Application
    Filed: August 22, 2001
    Publication date: May 30, 2002
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION AND BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY
    Inventors: Hekuan Luo, Ruiguo Tang, Kejing Gao, Qinfang Zhao, Jingyan An, Hua Yang, Jinsheng Huo