Patents by Inventor Sabine Schreyer

Sabine Schreyer 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).

  • Porphyrin-containing silicones having increased thermal stability
    Patent number: 5847034
    Abstract: The silicone compositions, in particular silicone oils and crosslinkable silicone compositions, contain porphyrins as heat stabilizer.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: December 8, 1998
    Inventors: Frank Achenbach, Wolfgang Hechtl, Georg Eberl, Norbert Egerter, Sabine Schreyer
  • Organopolysiloxane compositions which are stabilized to heat and can be crosslinked to give elastomers
    Patent number: 5610218
    Abstract: Organopolysiloxane compositions which are stabilized to heat and can be crosslinked to give elastomers, which as stabilizer combination contain (D) a copper compound in an amount from 1 to 180 ppm by weight calculated as elemental copper and (E) a zinc compound in an amount of from 1 to 180 ppm by weight calculated as elemental zinc, in each case based on the total weight of the organopolysiloxane composition which is stabilized to heat and can be crosslinked to give elastomers, and (F) optionally, organic fatty acid.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: March 11, 1997
    Assignee: Wacker-Chemie GmbH
    Inventors: Enno Funk, Norbert Egerter, Sabine Schreyer, Frank Achenbach, Herbert Barthel