Patents by Inventor Frank W. Villaescusa

Frank W. Villaescusa 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).

  • Aryl ether compounds and their synthesis
    Patent number: 3944575
    Abstract: Tetranitro aryl ether compounds are prepared by aromatic nucleophilic substitution of various aryl diols with 4-fluoro-1,2-dinitrobenzene. By reducing the nitro moieties of the tetranitro compounds, tetraamino aryl ether compounds are obtained. These latter compounds are useful as monomers in preparing thermally stable polymers having good solubility parameters.
    Type: Grant
    Filed: May 30, 1974
    Date of Patent: March 16, 1976
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Frank W. Villaescusa, John G. Breland, Fred E. Arnold