Process for the permanent deformation of hair

US4532950A · kind A · utility

Assignee

• Wella GmbH · DE

Inventors

• Gunther Lang · Reinheim, DE
• Theodor Wajaroff · Darmstadt, DE

Key dates

• Filing date: Jun 17, 1983
• Grant date: Aug 6, 1985
• Expiry date: Jun 17, 2003

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/95
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Process for the permanent deformation of hair, wherein the hair deforming agent as used, is prepared immediately before use, by commingling of two components. One component contains a hair keratin-reducing compound, while the other component consists of a minimum of one organic compound with activated multiple carbon-carbon bond or contains such compound. In given instances, inorganic redox catalysts are additionally contained. The ready-to-use deforming agent may, furthermore, contain redox indicators to allow determination of the usability of the hair keratin-reducing compound. By commingling the two components to a ready-to-use hair deforming agent, the keratin-reducing compound is gradually bonded by adduction to the unsaturated aliphatic compound and thus being rendered unusable for hair deformation. The concentration of the keratin-reducing compound can thus be reduced in the course of the period of application and be adapted to the gradually softening hair.