Patent · US Active

Hair dyeing composition

US10478643B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Assignee

KAO GERMANY GMBH · DE

Inventors

Dominic Pratt · Darmstadt, DE
Bernd Nöcker · Darmstadt, DE
Fariba Ghiasi · Darmstadt, DE

Key dates

Filing date	Apr 14, 2016
Grant date	Nov 19, 2019
Priority date	—
Expiry date	Jul 4, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K8/494
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to a hair dyeing composition comprising select hair direct dyes and a reducing agent in order to color hair homogeneously, intensively and durably.

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