Hydrogenation of unsaturated polymers containing nitrile groups

US5034469A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hartmuth Buding · Titz, DE
• Joachim Thormer · Leverkusen, DE
• Wilfried Nolte · Leverkusen, DE
• Johann Hohn · Dormagen, DE
• Paul Fiedler · Cologne, DE
• Thomas Himmler · Odenthal, DE

Key dates

• Filing date: Jun 18, 1990
• Grant date: Jul 23, 1991
• Expiry date: Jun 18, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08C19/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hydrogenation products of olefinically unsaturated polymers having nitrile groups prepared in the presence of ruthenium catalysts in a solvent comprising a low-molecular ketone and a secondary or tertiary C.sub.3 -C.sub.6 -alcohol by hydrogenation, can be processed to vulcanizates with improved compression set values.