Patent · US Expired

Method and composition adjusted to the isoelectric point of hair for conditioning of oxidatively dyed hair

US6685926B2 · kind B2 · utility

7Cited by

3References

16Claims

0Family size

Assignee

Wella GmbH · DE

Inventors

Ursula Hehner · Brensbach, DE
Herbert Deutz · Zwingenberg, DE
Petra Braun · Munster, DE
Ernst Flemming · Heusenstamm, DE

Key dates

Filing date	Nov 13, 2001
Grant date	Feb 3, 2004
Priority date	—
Expiry date	Jan 24, 2022

Classification

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

Abstract

A method of conditioning and oxidatively dyeing human hair includes applying an oxidative hair dyeing composition to the human hair in order to dye the human hair and, simultaneously or subsequently to the applying of the oxidative hair dyeing composition, applying a particular hair conditioning composition to the hair. This hair conditioning composition has a pH value of from 3.4 to 3.9, which corresponds to an isoelectric point of the human hair, and contains from 0.001 to 2.5% by weight of a cationic polymer, an optional pH buffer and preferably additional conditioning ingredients, such as a cationic surfactant and/or a fatty alcohol.

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