Patents by Inventor Birgit Garmatter

Birgit Garmatter 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).

  • Catalyst for the gas-phase polymerisation of conjugated dienes
    Patent number: 5877109
    Abstract: Catalysts comprisingA) a rare earth alkoxide, a rare earth carboxylate and/or a rare earth coordination compound with diketones,B) an alumoxane andC) an inert, particulate, inorganic solid with a specific surface area of greater than 10 m.sup.2 /g and a pore volume of 0.3 to 15 ml/gare excellently suited to the polymerisation of conjugated dienes, in particular butadiene, in the gas phase.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: March 2, 1999
    Assignee: Bayer AG
    Inventors: Karl-Heinz Reichert, Peter Marquardt, Christopher Eberstein, Birgit Garmatter, Gerd Sylvester