Patents by Inventor Ralf Tappe

Ralf Tappe 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).

  • Publication number: 20120190766
    Abstract: The invention relates to pellets of ?-olefin-vinyl acetate copolymers with a vinyl acetate content of ?40% by weight, based on the total weight of the ?-olefin-vinyl acetate copolymer, as an embedding material for solar modules, wherein the pellets comprise, as additives, at least one UV activator and at least one silane coupling reagent, and to the use thereof for the production of films for solar modules.
    Type: Application
    Filed: August 3, 2010
    Publication date: July 26, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Andreas Roos, Michael Herrmann, Rainer Kalkofen, Stefan Kelbch, Hans-Jürgen Frommont, Gerd Bergmann, Ralf Tappe
  • Patent number: 4912151
    Abstract: A method for manufacturing pourable pulverulent rubber-filler mixtures starting from rubber solutions is disclosed. In this method, the filler is dispersed in an organic solvent and then mixed with a rubber solution to obtain a stable rubber-containing filler dispersion. The dispersion is then introduced into hot water containing a dispersed filler and subjected to high shear forces, causing the organic solvent to simultaneously be largely distilled off. After the rubber-containing filler dispersion has been completely added, an aqueous filler dispersion is added, water is removed from the precipitated rubber-filler mixture, and the product mixture is dried under constant agitation.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: March 27, 1990
    Assignee: Huels Aktiengesellschaft
    Inventor: Ralf Tappe