Patents by Inventor Zhonglln Ma

Zhonglln Ma 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).

  • SUPPORTED NONMETALLOCENE CATALYST, PREPARATION AND USE THEREOF
    Publication number: 20120214957
    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: Application
    Filed: October 13, 2010
    Publication date: August 23, 2012
    Inventors: Chuanfeng Li, Hongping Ren, Xiaoli Yao, Zhonglln Ma, Feng Guo, Kaixiu Wang, Jingwei Liu, Yaming Wang, Lijuan Yang