Patents by Inventor Ralf Kirchner

Ralf Kirchner 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).

  • Process and apparatus for preparing aqueous dispersions of synthetic resins
    Patent number: 4482658
    Abstract: A process and apparatus for the preparation of aqueous synthetic resin dispersions by using water to precipitate the synthetic resins from their solutions in water-miscible solvents. The solutions may contain pigments, extenders, and additives. The precipitated solids are separated off and dispersed uniformly in an aqueous medium. The precipitation of the synthetic resins is carried out in the presence of inert grinding bodies.
    Type: Grant
    Filed: December 15, 1982
    Date of Patent: November 13, 1984
    Assignee: BASF Farben & Fasern AG
    Inventors: Friedrich Vock, Peter Lessmeister, Ralf Kirchner