Patents by Inventor Wolfgang Siebourg

Wolfgang Siebourg 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).

  • ABS molding compositions having improved processability
    Patent number: 6639000
    Abstract: An additive mixture containing a dibenzoate and either or both of a compound containing at least one structural unit and a compound containing at least one structural unit is disclosed. The additive combination enhances the processability of a thermoplastic molding composition that contains a (co)polymer of styrene, methyl methacrylate, acrylonitrile, methacrylonitrile, maleic anhydride and N-substituted maleimide and a graft copolymer.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Siebourg, Edgar Leitz, Herbert Eichenauer
  • Composites containing ABS
    Publication number: 20030022966
    Abstract: A composite containing an ABS component is disclosed.
    Type: Application
    Filed: June 4, 2002
    Publication date: January 30, 2003
    Inventors: Edgar Leitz, Harry Staratschek, Herbert Eichenauer, Wolfgang Siebourg
  • Composite containing ABS
    Publication number: 20030008948
    Abstract: A composite containing I) an ABS component which contains
    Type: Application
    Filed: June 4, 2002
    Publication date: January 9, 2003
    Inventors: Edgar Leitz, Harry Staratschek, Herbert Eichenauer, Wolfgang Siebourg
  • ABS molding compositions having improved processability
    Publication number: 20020082326
    Abstract: An additive mixture containing a dibenzoate and either or both of a compound containing at least one structural unit 1
    Type: Application
    Filed: September 18, 2001
    Publication date: June 27, 2002
    Inventors: Wolfgang Siebourg, Edgar Leitz, Herbert Eichenauer
  • Polycarbonate containing aralkylphenyl end groups
    Patent number: 4929709
    Abstract: This invention relates to thermoplastic, aromatic polycarbonates prepared with the aid of chain terminating agents corresponding to formula (I) ##STR1## to a process for the preparation of these polycarbonates and to their use for the production of moulded articles for optical purposes.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: May 29, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ralf Dujardin, Rolf-Volker Meyer, Wolfgang Siebourg
  • Polycarbonate molding compositions
    Patent number: 4828921
    Abstract: A moulding composition comprising a polycarbonate resin and an acrylate-based plating modifier was found to be suitable for preparing metal coated articles where the metal coating is deposited by an electroless process. In a preferred embodiment of the invention the moulding composition further comprise a flame retarding agent.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: May 9, 1989
    Assignee: Mobay Corporation
    Inventors: Mark W. Witman, Sivaram Krishnan, Wolfgang Siebourg, Ronald L. Price
  • Flame-prooved polyamide moulding materials
    Patent number: 4520147
    Abstract: Polyamide moulding compositions containing triazolidine-3,5-diones or reaction products thereof as flame retarding agents.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: May 28, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Dhein, Ludwig Rottmaier, Rudolf Merten, Wolfgang Siebourg
  • Flameproof polyamide moulding compositions
    Patent number: 4456715
    Abstract: Self-extinguishing thermoplastic polyamide moulding compositions containing barbituric acid and/or reaction products thereof as flameproofing agent.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: June 26, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ludwig Rottmaier, Rudolf Merten, Wolfgang Siebourg, Burkhard Lachmann
  • Flame-proofed polyamide moulding materials
    Patent number: 4396736
    Abstract: Polyamide moulding compositions containing triazolidine-3,5-diones or reaction products thereof as flame retarding agents.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: August 2, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rolf Dhein, Ludwig Rottmaier, Rudolf Merten, Wolfgang Siebourg