Patents by Inventor Mounir M. Ghali

Mounir M. Ghali 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).

  • Reactive polyimides for addition to thermosetting resins, and process for preparation of same
    Patent number: 5104970
    Abstract: Thermoplastics containing imide groups in the polymer backbone, soluble in an unmodified state, are rendered reactive with thermosetting resins by partial conversion of the polymer backbone to provide reactive groups. The modified polymer may be added as microspheres to a thermosetting resin, subsequently crosslinking therewith supressing solvent sensitivity in a fiber reinforced matrix composite comprising the toughened resin as the matrix therefore. The modified polymer microspheres retain their physical identity in the cured composite structure.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: April 14, 1992
    Assignee: Hexcel Corporation
    Inventors: Kenneth S. Baron, Joran Diamant, Mounir M. Ghali, Winston L. Hedges
  • Densified polyethersulfone
    Patent number: 4945154
    Abstract: Polyethersulfone is densified by preparation of a homogeneous paste with a semi-solvent, which may be drawn off by heating and vacuum, from an emulsion prepared from the paste. The resulting PES is substantially densified, with a reduced surface area. The densified PES can be added in significant amounts to thermosetting resin preparations, without a substantial increase in of viscosity.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: July 31, 1990
    Assignee: Hexcel Corporation
    Inventors: Mounir M. Ghali, Winston L. Hedges