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:
Sep. 13, 2016
Filed:
Dec. 13, 2012
Applicant:
L'oreal, Paris, FR;
Inventors:
Stephane Sabelle, Paris, FR;
Madeline Leduc, Paris, FR;
Assignee:
L'OREAL, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); A61K 8/41 (2006.01); A61Q 5/06 (2006.01); C09B 55/00 (2006.01); A61K 8/34 (2006.01); A61K 8/35 (2006.01); A61K 8/42 (2006.01);
U.S. Cl.
CPC ...
A61K 8/41 (2013.01); A61K 8/34 (2013.01); A61K 8/35 (2013.01); A61K 8/411 (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 2800/4322 (2013.01); A61K 2800/88 (2013.01);
Abstract
The present invention relates to azomethine-type direct dyes with a tri-aromatic unit having the following formula (I): and their use for coloring keratin fibers, particularly human keratin fibers such as the hair. The invention also relates to a composition for dyeing keratin fibers comprising, in a suitable medium for dyeing, such direct dyes. Another subject of the present invention is a method for dyeing keratin fibers using said dyeing composition. Finally the present invention also relates to precursors for these direct dyes.