Patents Assigned to Sinopec Yangzi Petrochemical Company Ltd.
  • Supported nonmetallocene catalysts, preparation and use thereof
    Patent number: 9334339
    Abstract: Disclosed is a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst is characterized by a high catalyst activity for olefin polymerization and a significant monomer effect. Further disclosed is use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization. The polymer produced therewith is characterized by superior particle morphology, a high bulk density, and/or a narrow molecular weight distribution.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: May 10, 2016
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC YANGZI PETROCHEMICAL COMPANY LTD.
    Inventors: Chuanfeng Li, Hongping Ren, Lin Kan, Feng Guo, Wenrui Wang, Yuming Yi, Shaohui Chen, Jiye Bai
  • Supported nonmetallocene catalyst, preparation and use thereof
    Patent number: 8952112
    Abstract: This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: February 10, 2015
    Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Company Ltd.
    Inventors: Chuanfeng Li, Hongping Ren, Xiaoli Yao, Zhonglin Ma, Feng Guo, Kaixiu Wang, Jingwei Liu, Yaming Wang, Lijuan Yang
  • Supported nonmetallocene catalyst, preparation and use thereof
    Patent number: 8952113
    Abstract: This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: February 10, 2015
    Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Company Ltd.
    Inventors: Chuanfeng Li, Hongping Ren, Xiaoli Yao, Lin Kan, Bo Liu, Zhonglin Ma, Feng Guo, Kaixiu Wang, Yaming Wang, Lijuan Yang
  • SUPPORTED NONMETALLOCENE CATALYSTS, PREPARATION AND USE THEREOF
    Publication number: 20140364576
    Abstract: Disclosed is a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst is characterized by a high catalyst activity for olefin polymerization and a significant monomer effect. Further disclosed is use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization. The polymer produced therewith is characterized by superior particle morphology, a high bulk density, and/or a narrow molecular weight distribution.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 11, 2014
    Applicants: SINOPEC YANGZI PETROCHEMICAL COMPANY LTD., CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Chuanfeng LI, Hongping REN, Lin KAN, Feng GUO, Wenrui WANG, Yuming YI, Shaohui CHEN, Jiye BAI
  • Magnesium-compound supported nonmetallocene catalyst and preparation thereof
    Patent number: 8716416
    Abstract: The present invention relates to a magnesium compound-supported nonmetallocene catalyst, which is produced by directly contacting a catalytically active metallic compound with a nonmetallocene ligand-containing magnesium compound, or by directly contacting a nonmetallocene ligand with a catalytically active metal-containing magnesium compound, through an in-situ supporting process. The process is simple and flexible. In the process, there are many variables in response for adjusting the polymerization activity of the catalyst, and the margin for adjusting the catalyst load or the catalyst polymerization activity is broad. The magnesium compound-supported nonmetallocene catalyst according to this invention can be used for olefin homopolymerization/copolymerization, in combination with a comparatively less amount of the co-catalyst, to achieve a comparatively high polymerization activity. Further, the polymer product obtained therewith boasts high bulk density and adjustable molecular weight distribution.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: May 6, 2014
    Assignee: Sinopec Yangzi Petrochemical Company Ltd.
    Inventors: Yuefeng Gu, Xiaoli Yao, Chuanfeng Li, Zhonglin Ma, Feng Guo, Bo Liu, Yaming Wang, Shaohui Chen, Xiaoqiang Li, Jiye Bai