Recovery of hydrogenation catalysts from solutions of hydrogenated nitrile rubber

US5403566A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Peter Panster · Rodenbach, DE
• Stefan Wieland · Offenbach, DE
• Hartmuth Buding · Titz, DE
• Werner Obrecht · Moers, DE

Key dates

• Filing date: May 13, 1994
• Grant date: Apr 4, 1995
• Expiry date: May 13, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Rhodium and ruthenium catalysts can be recovered from solutions of hydrogenated nitrile rubber by addition onto organosiloxane-based absorbers.