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. 04, 2012
Filed:
Feb. 19, 2010
Applicant:
Beate Fröhling, Neustadt, DE;
Inventor:
Beate Fröhling, Neustadt, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); C07D 265/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to hair dyeing composition comprising (a) a dye of formula (1); (b) a least one dye selected from the compounds of formulae (2) and (3), wherein D is the radical of a diazo component of the formula (2a) and (c) a quaternary ammonium salt selected from (c) quaternary ammonium salts of the formula (4); (c) imidazolium salts of the formula (5) and (c) quaternary diammonium salts of the formula (6). The invention also relates to the dyeing methods for dyeing keratinous fibers comprising such dyeing composition.