Patents by Inventor Peggy Guinet

Peggy Guinet 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).

  • Oil-in-water emulsion comprising at least one lubricating additive
    Patent number: 6486102
    Abstract: An emulsion used to lubricate the surface of a steel sheet, comprising an additive corresponding to one of the following formulae: (R1-2—O—)1-2—PSS—(CH2)n—COO—(CH2)m—CH3, (R1-2—O—)1,2—PSS—CH2-&phgr;-O—H, (R1,2—O—)1,2—PSS—CH2-&phgr;-O—(CH2)n, —COO—(CH2)m, —CH3, where PSS designates a dithiophosphate function. The naked sheets of steel that are treated with said emulsion have very good tribological properties even when the density of the emulsion thus applied is less than or equal to 1 g/m2 when dry. The invention enables dry-looking oiled sheets to be obtained, whereby no re-oiling is required before forming even by die stamping.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: November 26, 2002
    Assignee: Unisor
    Inventors: Hervé Derule, Hubert Jacobs, Amadou Dicko, Peggy Guinet