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:
Dec. 17, 2013
Filed:
Aug. 16, 2011
Applicants:
Sandra Schmelz, Marktheidenfeld, DE;
Jürgen Ehmig, Riedstadt, DE;
Inventors:
Sandra Schmelz, Marktheidenfeld, DE;
Jürgen Ehmig, Riedstadt, DE;
Assignee:
Kao Germany GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An oxidative dyeing composition comprises at least one oxidative dye precursor comprising further at least two structurally different reducing agents wherein the first is selected from inorganic reducing agents and present at a concentration of at least 0.1% by weight calculated to the total composition, and the second is an organic reducing agent and/or its salts selected from thioglycolic acid, acetylcysteine and cysteine, and their salts, wherein the composition is substantially free of ascorbic acid and/or its salts.