Patents Assigned to Yangzi Petrochemical Company Co., Ltd.
  • Supported nonmetallocene olefin polymerization catalyst, preparation method and use thereof
    Patent number: 7875568
    Abstract: The present invention provides a method for supporting a nonmetallocene olefin polymerization catalyst, comprising the following steps: a carrier reacts with a chemical activator to obtain a modified carrier; a magnesium compound is dissolved in a tetrahydrofuran-alcohol mixed solvent to form a solution, then the modified carrier is added to the solution to perform a reaction, then filtered and washed, dried and suction dried to prepare a composite carrier; a nonmetallocene olefin polymerization catalyst is dissolved in a solvent, and then reacts with said composite carrier, then is washed and filtered, dried and suction dried, to prepare a supported nonmetallocene olefin polymerization catalyst. The present invention further relates to a supported nonmetallocene olefin polymerization catalyst as prepared by this method.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: January 25, 2011
    Assignee: Yangzi Petrochemical Company Co., Ltd.
    Inventors: Houliang Dai, Houping You, Chuanfeng Li, Xiaoli Yao, Lijin Zhou, Xiaoqiang Li, Yarning Wang, Zhonglin Ma, Jiye Bai
  • Supported Nonmetallocene Olefin Polymerization Catalyst, Preparation Method and Use Thereof
    Publication number: 20080227936
    Abstract: The present invention provides a method for supporting a nonmetallocene olefin polymerization catalyst, comprising the following steps: a carrier reacts with a chemical activator to obtain a modified carrier; a magnesium compound is dissolved in a tetrahydrofuran-alcohol mixed solvent to form a solution, then the modified carrier is added to the solution to perform a reaction, then filtered and washed, dried and suction dried to prepare a composite carrier; a nonmetallocene olefin polymerization catalyst is dissolved in a solvent, and then reacts with said composite carrier, then is washed and filtered, dried and suction dried, to prepare a supported nonmetallocene olefin polymerization catalyst. The present invention further relates to a supported nonmetallocene olefin polymerization catalyst as prepared by this method.
    Type: Application
    Filed: October 21, 2005
    Publication date: September 18, 2008
    Applicant: YANGZI PETROCHEMICAL COMPANY CO., LTD.
    Inventors: Houliang Dai, Houping You, Chuanfeng Li, Xiaoli Yao, Lijin Zhou, Xiaoqing Li, Yarning Wang, Zhonglin Ma, Jiye Bai