Patents by Inventor Georges Voituron

Georges Voituron 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).

  • Patent number: 4450125
    Abstract: A process for the production of polypropylene fibrids of short length by abrupt expansion of a liquid mixture of molten polypropylene, an alkane solvent for the polypropylene, and a minor amount of a non-solvent for the polypropylene. The mixture, which is at a high temperature and high pressure, is ejected through an expansion orifice to instantaneously vaporize the alkane and to solidify the polypropylene.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: May 22, 1984
    Assignee: Solvay & Cie
    Inventors: Georges Voituron, Jean-Pierre Pleska
  • Patent number: 4189455
    Abstract: A continuous fibrillated structure, formed by the abrupt pressure release of a two-phase liquid mixture of polymer and solvent at elevated temperature and pressure so as to cause the instantaneous vaporization of the solvent, is shredded by a stream of fluid directed transversely against the continuous fibrillated structure at the moment of its formation.
    Type: Grant
    Filed: August 1, 1972
    Date of Patent: February 19, 1980
    Assignee: Solvay & Cie.
    Inventors: Carlo Raganato, Georges Voituron
  • Patent number: 4025593
    Abstract: A continuous fibrillated structure, formed by the abrupt pressure release of a two-phase liquid mixture of polymer and solvent at elevated temperature and pressure so as to cause the instantaneous vaporization of the solvent, is shredded by introducing a make-up fluid into the two-phase liquid mixture before the pressure release is complete.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: May 24, 1977
    Assignee: Solvay & Cie
    Inventors: Carlo Raganato, Georges Voituron