Patents by Inventor Hans-Jurgen Simon

Hans-Jurgen Simon 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).

  • Method of keeping nozzle bodies or breaker plates clean during extrusion of polymer melts
    Patent number: 4124666
    Abstract: The invention relates to a method of keeping nozzle bodies or breaker plates clean during extrusion of polymer which can be shaped from the melt which comprises preventing the formation of deposits near the nozzle orifices by gassing these orifices at the point of extrusion of the melt, said gas consisting entirely or partly of vapors of substances which have a depolymerizing action on the deposits formed from the melt at the edge of the nozzle orifice.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: November 7, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerd Wilhelm, Artur Jaschke, Hans-Jurgen Simon, Jens Schmidt, Surinder S. Sandhu