Patents by Inventor Astrid Tueckmantel

Astrid Tueckmantel 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).

  • Coating agents which can be used for multi-layer enameling
    Patent number: 6743867
    Abstract: A coating compound comprising a binder/crosslinking agent system that comprises 20 wt. % to 80 wt. % of one or more carboxyl-functional components A) and 80 wt. % to 20 wt. % of one or more epoxy-functional (meth)acrylic copolymers B).
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: June 1, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Carmen Flosbach, Friedrich Herrmann, Claudia Drewin, Walter Schubert, Astrid Tueckmantel
  • Coating of carboxyl (meth)acrylic copolymer or polyester and urea anti-sag agent prepared in polyepoxide
    Patent number: 6437056
    Abstract: Coating composition suitable for multilayer lacquering, containing, in addition to organic solvent, anti-sagging agents, optionally pigments, extenders and additives, a binder/crosslinkin agent system containing A) from 20 to 80 wt. % of carboxyl-functional (meth)acrylic copolymers and/or carboxyl-functional polyesters having an acid number of from 20 to 300, B) from 20 to 80 wt. % of epoxy-functional crosslinking agents, the percentages by weight of A) and B) adding up to 100 wt. %. C) from 0 to 30 wt. % of polymer polyol C), based on the sum of the weights of A) and B), E) from 0 to 20 wt. % of further crosslinking agents, based on the sum of the weights of A, B, and C), F) from 0 to 10 wt. % of monoepoxides, based on the sum of the weights of A) and B), and D) as anti-sagging agents, from 0.1 to 3 wt.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: August 20, 2002
    Assignee: E. I. du Pont de Nmeours and Company
    Inventors: Ralf Dahm, Carmen Flosbach, Hermann Kerber, Walter Schubert, Astrid Tückmantel