Vulcanisable compositions based on epoxy group-containing nitrile rubbers

US9725547B2 · kind B2 · utility

Assignee

• Arlanxeo Deutschland GmbH · DE

Inventors

• Sven Brandau · Strasbourg, FR
• Hans Magg · Bensberg, DE
• Achim Welle · Leverkusen, DE

Key dates

• Filing date: Oct 10, 2012
• Grant date: Aug 8, 2017
• Expiry date: Oct 10, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L19/006
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

There are provided novel vulcanizable compositions based on optionally fully or partly hydrogenated nitrile rubbers containing epoxy groups, specific basic crosslinkers and crosslinking accelerators, as a result of which the use of conventional crosslinkers, such as sulphur in particular, is no longer required. The vulcanizates producible therefrom possess very good compression sets at room temperature, 100° C. and 150° C., and additionally exhibit high tensile stress combined with good elongation at break.