Patents by Inventor Kenneth John Rowley

Kenneth John Rowley 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).

  • Process for the continuous gas-phase (co-)polymerisation of olefins in a fluidised bed reactor
    Patent number: 7067598
    Abstract: The present invention relates to a process for the gas-phase (co-)polymerization of olefins in a fluidized bed reactor using a chromium oxide catalyst characterized in that the polymerization is performed in the presence of a polymer structure modifier.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: June 27, 2006
    Assignee: BP Chemicals Limited
    Inventors: Jean-Jacques Kuhlburger, Kenneth John Rowley
  • Process for the gas phase polymerisation of olefins
    Publication number: 20040225098
    Abstract: The present invention relates to a process for gas phase polymerisation of olefins with the aid of a supported chromium oxide based catalyst. The present invention also relates to a chromium high molecular weight polyethylene powder obtainable by the claimed gas phase polymerisation process. The present invention further relates to a chromium high molecular weight polyethylene pellet having improved properties.
    Type: Application
    Filed: November 18, 2002
    Publication date: November 11, 2004
    Inventors: Jean-Jacques Kuhlberger, Kenneth John Rowley
  • Process for the continuous gas-phase (co-) polymerisation of olefins in a fluidised bed reactor
    Publication number: 20040030065
    Abstract: The present invention relates to a process for the gas-phase (co-)polymerisation of olefins in a fluidised bed reactor using a chromium oxide catalyst characterised in that the polymerisation is performed in the presence of a polymer structure modifier.
    Type: Application
    Filed: September 11, 2003
    Publication date: February 12, 2004
    Inventors: Jean-Jacques Kuhlburger, Kenneth John Rowley