Patents by Inventor Herbert Krohberger

Herbert Krohberger 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 for preparing highly transparent elastomers
    Patent number: 4008198
    Abstract: Highly transparent or optically clear elastomers are prepared by mixing (1) a nitrogen containing compound having at least one triorganosilyl group in which at least one nitrogen atom is linked either directly to a silicon atom or via an oxygen atom, but no more than one triorganosilyl group is linked to a nitrogen atom and no more than one condensable group is linked to a silicon atom, (2) a hexaorganodisilazane, (3) silicon dioxide having a surface area of at least 50 m.sup.2 /g with (4) a highly viscous diorganopolysiloxane. The resulting composition may be cured by the addition of a curing agent to form highly transparent or optically clear elastomers.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: February 15, 1977
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Krohberger, Jurgen Burkhardt, Jorg Patzke