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:
Jan. 31, 2017
Filed:
Dec. 13, 2012
Applicant:
L'oreal, Paris, FR;
Inventors:
Assignee:
L'OREAL, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); A61K 8/41 (2006.01); C09B 55/00 (2006.01); A61Q 5/06 (2006.01); A61K 8/34 (2006.01); A61K 8/35 (2006.01); A61K 8/42 (2006.01);
U.S. Cl.
CPC ...
A61K 8/411 (2013.01); A61K 8/34 (2013.01); A61K 8/35 (2013.01); A61K 8/41 (2013.01); A61K 8/42 (2013.01); A61Q 5/06 (2013.01); A61Q 5/065 (2013.01); A61Q 5/10 (2013.01); C09B 55/009 (2013.01); A61K 2800/4324 (2013.01); A61K 2800/88 (2013.01);
Abstract
The present invention relates to azomethine-type direct dyes having a triaromatic unit of formula (I) below: and also the use thereof for dyeing keratin fibers, in particular human keratin fibers such as the hair. The invention also relates to a composition for dyeing keratin fibers, comprising, in a medium suitable for dyeing, such direct dyes. Another subject of the present invention is a method for dyeing keratin fibers using said dye composition. Finally, the present invention also relates to precursors of these direct dyes.