Patents by Inventor Guenter Tusel

Guenter Tusel 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 for production of solution-diffusion membranes and their application for pervaporation
    Patent number: 4865743
    Abstract: For producing solution/diffusion membranes, homogeneous dense films prepared by melt extrusion or casting from synthetic polymers, having a melting temperature above 140.degree. C., a glass transition temperature above 0.degree. C. and long time stability against boiling ethanol are irradiated with accelerated electrons and submitted to a subsequent radical graft copolymerization. After graft polymerzation, the functional groups are converted into the dissociated salts.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: September 12, 1989
    Assignee: GFT Gesellschaft fur Trenntechnik mbh
    Inventors: Guido Ellinghorst, Bernd Goetz, Axel Niemoeller, Horst Scholz, Hartmut E. A. Brueschke, Guenter Tusel