Patents by Inventor Artur Jaschke

Artur Jaschke 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
  • Process for separating and recovering residual monomers from aqueous suspensions of acrylonitrile polymers
    Patent number: 3980529
    Abstract: The invention relates to a process for the recovery of acrylonitrile and other monomers from an aqueous polymer dispersion by continuous distillation in a thin-layer evaporator under reduced pressure, condensation of the evaporated monomers in a condenser under the same or similar reduced pressure and subsequent condensation or absorption respectively of the monomer vapors which have not been condensed in the condenser at a higher pressure.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: September 14, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerd Wilhelm, Karl Hurm, Rolf-Burkhard Hirsch, Artur Jaschke, Herbert Marzolph