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:
Oct. 08, 2013
Filed:
Dec. 10, 2012
L'oreal, Paris, FR;
Stephane Sabelle, Paris, FR;
Christophe Rondot, Mitry-Mory, FR;
Karine Picolet, Verrieres-le-Buisson, FR;
L'Oreal, Paris, FR;
Abstract
The subject of the invention is a composition for dyeing keratin fibers, comprising at least one 1,8-dihydroxynaphthalene derivative and at least one basifying agent other than aqueous ammonia; the use of the composition for hair dyeing and also the use of the composition in a dyeing process for keratin fibers. The composition according to the invention makes it possible to dye keratin fibers under mild oxidizing conditions even without using an oxidation base and an aromatic amine, while at the same time covering a broad color range with 1,8-dihydroxynaphthalene derivatives. The observed dyeing under oxidizing conditions operates under mild conditions of oxidation and/or basifying agent, in particular in the air, and does not produce any unpleasant odor.