Patents Examined by Bradely Etherton
  • Process to produce polyolefins using metallocene catalysts
    Patent number: 8071835
    Abstract: The invention is directed to a process for producing polyolefins by one or more homogeneous or colloidal polymerization catalyst wherein residual catalyst is removed by using a solid sorbent.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: December 6, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Margaret May-Som Wu, Norman Yang, Mark Paul Hagemeister, Shakeel Tirmizi