Patents by Inventor Dieter Eichenauer

Dieter Eichenauer 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).

  • Aromatic polyamide compositions with improved electrostatic properties, formed structures produced therefrom, and use and production thereof
    Patent number: 5554722
    Abstract: Aromatic polyamide compositions with improved electrostatic properties, formed structures produced therefrom, and use and production thereof.Described are compositions comprising an aromatic polyamide which is soluble in organic solvents and from 0.01 to 30% by weight, based on the weight of the composition, of an organic or organometallic charge control agent.The compositions can be used for producing formed structures, in particular fibers; these fibers are preferably used for producing webs which can be used for producing dust filters.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: September 10, 1996
    Assignee: Hoechst AG
    Inventors: Dieter Eichenauer, Werner Groh, Hans-Tobias Macholdt, Jorg Dahringer, Holger Jung, Richard Neuert