Patent · US Active

Method for dyeing keratinous material

US11786452B2 · kind B2 · utility

0Cited by

0References

19Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Constanze Kruck · Grevenbroich, DE
Sandra HILBIG · Bochum, DE
Daniela Kessler-Becker · Leverkusen, DE

Key dates

Filing date	Apr 20, 2020
Grant date	Oct 17, 2023
Priority date	—
Expiry date	Apr 20, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/5426
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A process for dyeing keratinous material is provided. The process includes (1) applying a coloring agent (a) to the keratinous material. The coloring agent (a) includes (a1) at least one amino-functionalized silicone polymer and (a2) at least one colorant compound. The method further includes (2) allowing the coloring agent (a) to act on the keratinous material for a period of 15 seconds to 10 minutes, and (3) rinsing out the dye (a) under running water for a period of 15 seconds to 10 minutes. In the process, no further cosmetic agent other than the coloring agent (a) is used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.