Patents by Inventor Wolfgang Hallstein

Wolfgang Hallstein 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).

  • Plasma-treated planar textile structures and method for the manufacture thereof
    Publication number: 20040224100
    Abstract: A plasma-treated planar textile structure containing synthetic fibers and a method for manufacturing the structure, wherein the structure has a high initial wettability, expressed by a height of rise of at least 80 mm after immersion for 30 minutes in an aqueous potassium hydroxide solution, and, upon storage for three months in air at 25° C., has a high initial wettability, expressed by a height of rise of at least 75 mm after immersion for 30 minutes in an aqueous potassium hydroxide solution. The plasma-treated planar textile structures preferably have a high hydrophilic stability when stored in alkaline media. The plasma-treated planar textile structures can be used, in particular, as separators for electrochemical energy storage devices.
    Type: Application
    Filed: April 23, 2004
    Publication date: November 11, 2004
    Applicant: Carl Freudenberg KG
    Inventors: Brigit Severich, Gerhard Schoepping, Wolfgang Hallstein, Stephan Rutz, Peter Kritzer