The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2011
Filed:
Dec. 09, 2008
Madeleine Leduc, Paris, FR;
Eric Metais, St Leu la Forêt, FR;
Stéphane Sabelle, Paris, FR;
Christophe Rondot, Mitry-mory, FR;
Madeleine Leduc, Paris, FR;
Eric Metais, St Leu la Forêt, FR;
Stéphane Sabelle, Paris, FR;
Christophe Rondot, Mitry-mory, FR;
L'Oreal S.A., Paris, FR;
Abstract
The invention relates to the dyeing of keratin fibres using azomethine direct dyes or precursors of azomethine dyes obtained from 2-alkylresorcinols. The invention relates to a dye composition comprising at least one azomethine direct dye or pre-cursor of an azomethine direct dye, to a process for dyeing keratin fibres, using the said composition, and to their uses in the dyeing of keratin fibres. This composition allows a particularly stable and fast coloration to be obtained.