Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2005-10-11
2005-10-11
Elhilo, Eisa (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S094140, C008S094330, C008S628000, C008S629000, C424S070100, C424S070200, C424S070400, C424S070600, C132S202000
Reexamination Certificate
active
06953486
ABSTRACT:
Colouring composition, method for obtaining and using same for colouring skin and/or keratin matters.The composition comprises, in a physiologically acceptable medium, an efficient amount of at least one colouring agent precursor selected among the compounds comprising at least one aromatic cycle having at least two hydroxyl groups carried by two consecutive carbon atoms of the aromatic cycle, optionally an amino acid comprising at least one thiol group and an efficient amount of a catalytic system comprising a first component selected amongst salts and oxides of Mn(II) and/or Zn(II) and/or the mixtures thereof and a second component selected amongst alkaline hydrogenocarbonates, alkaline earth hydrogenocarbonates and the mixtures thereof, the proportions of the first component and the second component being such that:[Mn(II)][HCO3]≤1with[Mn(II)]≠0[Zn(II)][HCO3]≤1with[Zn(II)]≠0[Mn(II)+Z n(II)][HCO3]≤1with[Mn(II)] and [Zn(II)]≠0Application for colouring skin and/or keratin matters.
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Co-pending Application No. 10/000,222 Now U.S. Appl. No. 6,723,136 B2.
Co-pending U.S. Appl. No. 10/148,201 filed on Oct. 29, 2002.
"L'Oreal"
Elhilo Eisa
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