Patent · US Expired

Method for permanently shaping keratin fibers, and agents

US6871652B1 · kind B1 · utility

5Cited by

3References

6Claims

0Family size

Assignee

Hans Schwarzkopf GmbH & Co. KG · DE

Inventors

Burkhard Mueller · Goldkronach, DE
Thorsten Knappe · Schenefeld, DE
Hartmut Manneck · Klein Wesenberg, DE
Dirk Bichels · Goldkronach, DE

Key dates

Filing date	Aug 10, 1999
Grant date	Mar 29, 2005
Priority date	—
Expiry date	Aug 10, 2019

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/88
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A process for permanently deforming keratin fibers and compositions suitable for use in this process are provided. The process includes treating keratin fibers, before and/or after mechanically deforming the keratin fibers, with an aqueous reducing composition containing a keratin reducing substance, rinsing the keratin fibers with a rinse after contact with the reducing composition, and applying to the keratin fibers an aqueous fixing composition containing an oxidizing agent, where at least one of the reducing composition, the fixing composition, or the rinse is in the form of a two-phase or multiphase system. The two phase or multiphase system contains at least one oil component and/or at least one alcohol having limited miscibility with water and is capable of being converted at least temporarily with mechanical agitation into a homogeneous system for application to hair.

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