Skin-coloring powder mixture

US5656262A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Thekla Kurz · Darmstadt, DE
• Sabine Hitzel · Messel, DE
• Roland Martin · Hamburg, DE
• Ralf Emmert · Bayonne, US

Key dates

• Filing date: Apr 28, 1994
• Grant date: Aug 12, 1997
• Expiry date: Apr 28, 2014

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K8/35
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to powder mixtures containing formaldehyde- and/or formic acid-releasing compounds which have skin-tanning properties, which powder mixtures contain an agent which forms sulphite ions and, if appropriate, a stabilizer, and to the preparation and use of these powder mixtures for manufacturing cosmetic or pharmaceutical preparations.