Patents by Inventor Fran.cedilla.oise Dixmier

Fran.cedilla.oise Dixmier 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).

  • Colloidal alkaline or alkaline-earth carbonates containing a compound of calcium, phosphorus and sulphur in micellar form
    Patent number: 5693597
    Abstract: Colloidal products are described which comprise micelles of alkaline metals or alkaline-earth metals, held in the colloidal state by at least one alkaline metal or alkaline-earth metal alkyl- or alkylarylsulphonate. The products further comprise micelles of a product containing calcium, phosphorus and sulphur resulting from the in situ reaction of calcium oxide or calcium hydroxide with a phosphorus sulphide, in particular tetraphosphorus decasulphide, and water.These colloidal products are used as antiwear and extreme pressure additives for lubricating greases and oils.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: December 2, 1997
    Assignee: Institut Francais du Petrole
    Inventors: Bruno Delfort, Bertrand Daoudal, Thierry Lacome, Fran.cedilla.oise Dixmier, Maurice Born