Patents by Inventor Gert Todtemann

Gert Todtemann 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).

  • Thermoplastic mounding compositions with flame-repellant properties
    Patent number: 5234979
    Abstract: The present invention relates to thermoplastic moulding compositions consisting of halogen-free polycarbonates, halogen-free polystyrene and/or halogen-free copolymers of styrene with acrylonitrile, halogen-free phosphorus compounds of the formula I ##STR1## and tetrafluoroethylene polymers, and, if appropriate, other known additives.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: August 10, 1993
    Inventors: Gert Todtemann, Klaus Reinking
  • Thermoplastic moulding compositions having flame-retardant properties
    Patent number: 4788238
    Abstract: The present invention provides thermoplastic flame-retardant moulding compositions containing halogen-containing copolycarbonates, styrene/maleic anhydride copolymers, phosphorus compounds of the formula (I) ##STR1## and tetrafluoroethylene polymers and, if desired, further known additives.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: November 29, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gert Todtemann, Klaus Reinking, Otto Koch, Kress Hans-Jurgen, Lindner Christian, Friedemann Muller, Horst Peters, Josef Buekers
  • Thermoplastic moulding compositions having flame-retarding properties
    Patent number: 4766165
    Abstract: The present invention relates to flame-retarding moulding compositions which are based on thermoplastic polycarbonates, copolymers of styrenes and maleic anhydride, phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers, small amounts of graft polymers and optionally halogen compounds and which in addition can contain stabilizers, pigments, flow agents, release agents and/or antistatics, and to a process for their preparation.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: August 23, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jurgen Kress, Friedemann Muller, Christian Lindner, Horst Peters, Josef Buekers, Gert Todtemann
  • Thermoplastic moulding compositions with flame-resistant properties
    Patent number: 4721774
    Abstract: The present invention relates to thermoplastic moulding compositions consisting of halogen-free polycarbonates, styrene/maleic anhydride copolymers, phosphorus compounds of the formula (I) ##STR1## and tetrafluoroethylene polymers and, where appropriate, other known additives.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: January 26, 1988
    Assignee: Bayer AG
    Inventors: Gert Todtemann, Klaus Reinking, Otto Koch