Patents by Inventor Christopher J. Aarons

Christopher J. Aarons 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).

  • High activity and good hydrogen response Ziegler-Natta polyethylene catalyst
    Patent number: 7153803
    Abstract: Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of polyethylene containing a solid titanium catalyst component containing a titanium compound and a support made from a magnesium compound, an alkyl silicate, and a monoester. The catalyst system may further contain an organoaluminum compound. Also disclosed are methods of making various types of polyethylene involving polymerizing ethylene in the presence of hydrogen and a catalyst system containing a support made from a magnesium compound, an alkyl silicate and a monoester.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: December 26, 2006
    Assignee: Engelhard Corporation
    Inventors: Zhidong Zhu, Main Chang, Christopher J. Aarons