Process for removing ruthenium-containing catalyst residues from optionally hydrogenated nitrile rubber

US7846995B2 · kind B2 · utility

Assignee

• LANXESS Deutschland GmbH · DE

Inventors

• Christopher Ong · Bridge City, US
• Franz-Josef Mersmann · Bensberg, DE

Key dates

• Filing date: Dec 17, 2008
• Grant date: Dec 7, 2010
• Expiry date: Jan 29, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08C19/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Novel optionally hydrogenated nitrile rubbers distinguised by a very low ruthenium content are provided as well as a process for the removal of ruthenium-containing catalyst residues from a solution of optionally hydrogenated nitrile rubber by using specific functionalized ion-exchange resins.