Patents by Inventor Elke Eberharter

Elke Eberharter 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).

  • Compositions for rendering absorbent materials water-repellent and oil-repellent
    Patent number: 5990212
    Abstract: The aqueous compositions for rendering absorbent materials oil-repellent and water-repellent consist essentially of(A) an organosilicon compound,(A1) a C.sub.1 -C.sub.20 -alkyl-C.sub.1 -C.sub.6 -alkoxysilane,(A2) an organopolysiloxane containing C.sub.1 -C.sub.6 -alkoxy groups and optionally groups selected from hydroxyl groups and C.sub.1 -C.sub.30 hydrocarbon groups which optionally contain basic nitrogen, or mixtures of (A1) and (A2),(B) an organofluorine compound consisting of fluorine and carbon atoms and optionally chlorine, hydrogen, oxygen sulfur, silicon, phosphorus and/ or nitrogen atoms, and containing CF bonds,(C) a surfactant and(D) water.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: November 23, 1999
    Assignee: Wacker-Chemie GmbH
    Inventors: Rudolf Hager, Elke Eberharter