Dehairing skin and hide

US4175922A · kind A · utility

Assignee

• Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Inventors

• Guenter Eckert · Schifferstadt, DE
• France Knaflic · Bischofswerda, DE
• Franz-Friedrich Miller · Ludwigshafen, DE
• Alfred Zissel · Bischofswerda, DE

Key dates

• Filing date: Nov 15, 1972
• Grant date: Nov 27, 1979
• Expiry date: Nov 15, 1992

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C14C1/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process for dehairing skin and hide with mercapto compounds in the presence of an alkaline medium in a short liquor.