Patents by Inventor Eva-Maria Puppe

Eva-Maria Puppe 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).

  • Patent number: 6172150
    Abstract: Condensation-crosslinking, room-temperature vulcanizing silicone rubber compositions A which contain additives B selected from the group consisting of sterically hindered phenols, sterically hindered bisphenols, sterically hindered thiobisphenols, zinc dialkyl dithiophosphates, zinc diaryl dithiophosphates, aromatic amines, sterically hindered amines or preparations containing the abovementioned substances, these additives optionally being present in the compositions A either individually or in any mixtures and mixing ratios with respect to one another.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: January 9, 2001
    Assignee: Wacker-Chemie GmbH
    Inventors: Georg Kollmann, Hans-Rudolf Pfeffer, Eva-Maria Puppe