Composition for treating tanned leather, and its preparation

US6316533A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerhard Wolf · Mannheim, DE
• Georg Igl · Backnang, DE
• Thomas Grosser · Ludwigshafen, DE
• Adolf Stubinger · Bischofswerda, DE
• Jürgen Werner · Bad Dürkheim, DE
• Erhard Guenther · Ludwigshafen, DE

Key dates

• Filing date: Aug 26, 1999
• Grant date: Nov 13, 2001
• Expiry date: Aug 26, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C303/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A composition containing (A) one or more aromatic sulfonates, (B) one or more aldehyde resins and (C) a buffer and is prepared and used for treating, in particular neutralizing, leather tanned with mineral compounds or mineral-free compounds.