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:
Aug. 29, 2023
Filed:
Oct. 30, 2020
Applicant:
Kao Corporation, Tokyo, JP;
Inventors:
Jens Heilmann, Darmstadt, DE;
Diana Bauer, Darmstadt, DE;
Steven Breakspear, Darmstadt, DE;
Peter Bauer, Darmstadt, DE;
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2006.01); A61K 8/22 (2006.01); A61K 8/06 (2006.01); A61K 8/34 (2006.01); A61K 8/40 (2006.01); A61K 8/49 (2006.01); A61Q 5/08 (2006.01);
U.S. Cl.
CPC ...
A61K 8/22 (2013.01); A61K 8/062 (2013.01); A61K 8/34 (2013.01); A61K 8/40 (2013.01); A61K 8/4953 (2013.01); A61Q 5/08 (2013.01); A61Q 5/10 (2013.01); A61K 2800/4322 (2013.01); A61K 2800/48 (2013.01); A61K 2800/596 (2013.01);
Abstract
A two-part oxidative dyeing composition is described. The two-part composition has an alkaline first part comprising oxidative dye couplers and/or oxidative dye precursors, and a second part comprising hydrogen peroxide, xanthine and/or its derivatives, and a lipophilic compound. The second part is formulated as water-in-oil emulsion and it was unexpectedly found that xanthines stabilize the viscosity of the second part composition allowing for improved dyeing performance.