Patents by Inventor Rudiger Kammerer

Rudiger Kammerer 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).

  • Reinforced plasterboard and method of forming
    Patent number: 4902348
    Abstract: The present invention is directed to a process for the manufacture of plasterboard optionally strengthened with reinforcing materials by mixing gypsum capable of rehydration with water and optionally reinforcing materials and subsequently pressing the resulting mixture, characterized in that polyisocyanates are added to the mixture used for producing the plasterboard and/or are applied to the surface of the finished plasterboard. The invention is also directed to the optionally reinforced plasterboard.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: February 20, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gert Kossatz, Heinz Sattler, Rudiger Kammerer, Hanns I. Sachs, Dietmar Schapel