Patents by Inventor Ronald J. Clemons

Ronald J. Clemons 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).

  • Olefin polymerization process
    Patent number: 7638584
    Abstract: A process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of a catalyst system which comprises a bridged indenoindolyl transition metal complex on a support material, an alkylalumoxane, a titanium tetralkoxide, and a branched alkyl aluminum compound. The process provides polyethylenes with low density from ethylene alone.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: December 29, 2009
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Barbara M. Tsuie, Ronald J. Clemons
  • Olefin polymerization process
    Publication number: 20070293639
    Abstract: A process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of a catalyst system which comprises a bridged indenoindolyl transition metal complex on a support material, an alkylalumoxane, a titanium tetralkoxide, and a branched alkyl aluminum compound. The process provides polyethylenes with low density from ethylene alone.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 20, 2007
    Inventors: Sandor Nagy, Barbara M. Tsuie, Ronald J. Clemons