Patents by Inventor Gerd Fritzsche

Gerd Fritzsche 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).

  • Patent number: 6384159
    Abstract: The present invention relates to a process to produce polyethylene through homopolymerization or copolymerization of ethylene with alpha-olefins in the presence of a titanium amide catalyst supported by an organic polymer material, for the production of moldings, such as through extrusion, injection molding, film blowing, sintering under pressure or ram extrusion. The catalyst according to the present invention contains a partially chloromethylated styrene divinyl benzene copolymer as the organic polymer material, a complex compound supported by it, which contains Mg, Al and Ti.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: May 7, 2002
    Assignee: Buna Sow Leuna Olefinverbund GmbH
    Inventors: Jürgen Schellenberg, Heinz-Jürgen Kerrinnes, Gerd Fritzsche, Gerd Lohse