Patent · US Active

Process for treating hair

US10398914B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignee

KAO GERMANY GMBH · DE

Inventors

Bernd Nöcker · Darmstadt, DE
Steven Breakspear · Darmstadt, DE
Peter Bauer · Ludwigshafen, DE
Manfred Durr · Bad Sobernheim, DE

Key dates

Filing date	Mar 15, 2016
Grant date	Sep 3, 2019
Priority date	—
Expiry date	Mar 15, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q5/10
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to a process for treating hair, especially human hair, wherein the hair is bleached and dyed in a subsequent order with compositions providing improved and milder bleaching and dyeing of hair. The inventors of the present invention have unexpectedly found out that when commonly used bleaching compositions and oxidative dyeing compositions are mixed with another composition comprising predominantly carboxylic acids, the bleaching and dyeing effects of the compositions are improved, homogeneous bleaching and dyeing of hair fibers is achieved and natural cosmetic properties of hair is maintained.

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