Patent · US Active

Powder composition comprising hair direct dyes

US11147754B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

KAO CORPORATION · JP

Inventors

Celine Gasselin · Darmstadt, DE
Manuella Jourdain · Darmstadt, DE
Steven Breakspear · Darmstadt, DE
Bernd Noecker · Ober-Ramstadt, DE

Key dates

Filing date	Sep 20, 2018
Grant date	Oct 19, 2021
Priority date	—
Expiry date	Sep 20, 2038

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/4322
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to a stable powder composition comprising hair direct dyes which is used for dyeing hair after mixing with one or more aqueous compositions. The composition comprises one or more direct dyes selected from HC Red 18, HC Blue 18, and HC Yellow 16, one or more alkanolamine as alkalizing agent, an organic and/or an inorganic pulverulent excipient.

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