Patents by Inventor Jean-Jacques Kuhlberger

Jean-Jacques Kuhlberger 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 gas phase polymerisation of olefins
    Publication number: 20050090610
    Abstract: The present invention relates to a process forgasphase polymerisation of olefins with the aidofa 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 22, 2004
    Publication date: April 28, 2005
    Inventors: Jean-Jacques Kuhlberger, Kenneth 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