Tanning agent and curing agent based on dialdehydes

US7354457B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Stephan Hueffer · Ludwigshafen, DE
• Gunther Pabst · Neumarkt i.d.OPf., DE
• Tilman Taeger · Seeheim-Jugenheim, DE
• Stefan Schroeder · Neuleiningen, DE
• Gerhard Wolf · Mannheim, DE

Key dates

• Filing date: May 2, 2003
• Grant date: Apr 8, 2008
• Expiry date: May 2, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C14C3/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Tanning agents can be prepared by reacting at least one aldehyde of formula I, with at least one further identical or different aldehyde of formula I,