Patents by Inventor Philip Angermeier

Philip Angermeier 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).

  • Precipitative process to prepare polyimides
    Publication number: 20060270825
    Abstract: A process for preparing polyimide resins comprises stirring a diamine and a dianhydride in a solvent to form a slurry; heating the slurry to a temperature sufficient for the diamine and dianhydride to react wherein the temperature is below the melting point of the dianhydride, below the melting point of the diamine, or below the melting points of the dianhydride and diamine; and reacting the diamine and dianhydride to form a polyimide having sufficient molecular weight to precipitate from the solvent.
    Type: Application
    Filed: May 25, 2005
    Publication date: November 30, 2006
    Inventors: Philip Angermeier, Robert Colborn, Robert Gallucci, Paul Howson, Tara Mullen, Roy Odle, Albert Stella, John Whitney