Patents by Inventor Paul Winfried

Paul Winfried 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).

  • Branched thermoplastic polycarbonates having improved protection against UV light
    Patent number: 5001177
    Abstract: This invention relates to branched thermoplastic polycarbonates containing hydroxybenzotriazoles corresponding to the following general formula (I): ##STR1##
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: March 19, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul Winfried, Hans-Josef Buysch, Wolfgang Nising, Thomas Scholl
  • Mixtures of polydiorganosiloxane-polycarbonate block co-condensates and polyisobutylenes
    Patent number: 4912165
    Abstract: The present invention relates to mixtures of polycarbonates and polyisobutylenes, polydiorganosiloxane-polycarbonate block cocondensates being employed as the polycarbonates and polyisobutylene homopolymers or polyisobutylene-isoprene copolymers as the polyisobutylenes. If appropriate, the moulding compositions can also contain ethylene homo- or copolymers.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: March 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul Winfried, Ulrich Grigo, Werner Nouvertne, Peter R. Muller