Acrylate tanning agent

US4961750A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

• Juergen Christner · Emmelshausen, DE
• Ernst Pfleiderer · Weiterstadt, DE
• Tilman Taeger · Seeheim-Jugenheim, DE
• Gertrud Wick · Weiterstadt, DE

Key dates

• Filing date: Jul 25, 1988
• Grant date: Oct 9, 1990
• Expiry date: Jul 25, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F20/38
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Tanning agents containing a complex formed between chromium ions and an acrylate or methacrylate polymer and further including an organically bound thio group present in said polymer or in a mercapto compound added to the tanning agents, and methods for pickling, tanning, and retanning skins and hides with such tanning agents.