Patents by Inventor Brian S. Kimberley

Brian S. Kimberley 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 polymerisation catalysts
    Patent number: 7678726
    Abstract: A supported polymerization catalyst system is prepared by a method comprising the following steps: (i) addition of a cocatalyst to a porous support, (ii) mixing a polymerisation catalyst with a polymerisable monomer, and (iii) contacting together the components resulting from steps (i) and (ii). The porous support is preferably silica and the polymerisation catalyst is preferably a metallocene. The polymerisable monomer is typically 1-hexene and the supported catalyst system provides advantages a slowly decaying activity profile particularly when operating in the gas phase.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: March 16, 2010
    Assignee: Innovene Europe Limited
    Inventors: Grant B. Jacobsen, Brian S. Kimberley, Sergio Mastroianni
  • Latent metallocene catalyst systems for olefin polymerization
    Patent number: 6998449
    Abstract: A metallocene catalyst may be temporarily and reversibly passivated by contact with an effective amount of a passivating compound selected from the group of oxygen, oxygen-containing compounds, and nitrogen-containing compounds.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: February 14, 2006
    Assignee: BP Corporation North America
    Inventor: Brian S. Kimberley
  • Latent metallocene catalyst systems for olefin polymerization
    Publication number: 20030054943
    Abstract: A metallocene catalyst may be temporarily and reversibly passivated by contact with an effective amount of a passivating compound selected from the group of oxygen, oxygen-containing compounds, and nitrogen-containing compounds.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 20, 2003
    Inventor: Brian S. Kimberley