Patents by Inventor Michael Schelhass

Michael Schelhass 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).

  • Publication number: 20070072993
    Abstract: Disclosed are processes for preparing polyareneazole polymers including contacting a molar excess of a free base in water with a terephthalic acid salt to form an aqueous mixture, adjusting the pH to precipitate a monomer complex, contacting the monomer complex with metal powder, and polymerizing the monomer complex. Polyareneazoles, filaments and yarns are also disclosed.
    Type: Application
    Filed: March 27, 2006
    Publication date: March 29, 2007
    Applicants: E. I. du Pont de Nemours and Company, Magellan Systems International, LLC
    Inventors: Doetze Sikkema, David Rodini, Qinghong Adkins, Steven Allen, Georg Martin, Ralf Demuth, Michael Schelhass