Patents Examined by Brian P. Meuk
  • Use of particular aminosilicones as a pretreatment of processes for coloring keratin fibers with direct dyes or with oxidation dyes
    Patent number: 6824764
    Abstract: The present disclosure relates to the use, as a pretreatment of a process for coloring, with at least one direct dye and/or with at least one oxidation dye, keratin fibers, such as human hair, of a composition comprising at least one particular aminosilicone as defined herein. The disclosure also relates to a process for coloring, with at least one direct dye and/or with at least one oxidation dye, keratin fibers, such as human hair, comprising a pretreatment with a composition comprising at least one particular aminosilicone as defined herein.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: November 30, 2004
    Assignee: L'Oreal S.A.
    Inventors: Priscille Devin-Baudoin, Anne Sabbagh