Patents by Inventor Hans J. Koller

Hans J. Koller 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).

  • Polymeric MDI compositions for use in thermoformable foams
    Patent number: 6096237
    Abstract: The present invention relates generally to polyisocyanate compositions for use in polyurethane thermoformable foams. The polyisocyanate compositions of the present invention which are also useful as binder/hardeners for prefoamed products offer improved stability at relatively low temperatures over other known polymeric diphenylmethane diisocyanate compositions.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: August 1, 2000
    Assignee: BASF Corporation
    Inventors: Thirumurti Narayan, Hans J. Koller