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:
May. 06, 2025
Filed:
Oct. 05, 2021
Applicant:
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Inventors:
Lusine Sargsyan, Hamburg, DE;
Hartmut Manneck, Barnitz, DE;
Thomas Hippe, Appen, DE;
Volkmar Vill, Hamburg, DE;
Assignee:
HENKEL AG & CO. KGAA, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61Q 5/10 (2005.12); A61K 8/19 (2005.12); A61K 8/34 (2005.12); A61K 8/362 (2005.12); A61K 8/9789 (2016.12); A61Q 5/06 (2005.12);
U.S. Cl.
CPC ...
A61K 8/19 (2012.12); A61K 8/34 (2012.12); A61K 8/362 (2012.12); A61K 8/9789 (2017.07); A61Q 5/065 (2012.12);
Abstract
The present disclosure relates to a process and a kit for dyeing keratin-containing fibers, in particular human hair, using selected natural dyes and an iron(II) salt. The kit includes an aqueous composition (M) and an aqueous composition (T), where the aqueous composition (M) includes a polyphenol and a buffer system. The aqueous composition (T) includes a salt of the divalent iron cation Fe(II), and optionally includes a buffer.