Process for the production of C.sub.4 -C.sub.16 alkyl rubbers using the slurry process

US5539065A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Baade · Wildeshausen, DE
• Gerhard Langstein · Kürten, DE
• Judit E. Puskas · Akron, US

Key dates

• Filing date: Jul 19, 1995
• Grant date: Jul 23, 1996
• Expiry date: Jul 19, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F210/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The production of C.sub.4 -C.sub.16 alkyl rubbers using the slurry process by copolymerisation of isoolefins having 4 to 16 carbon atoms with conjugated diolefins having 4 to 6 carbon atoms and/or cationically polymerisable, mono- or polyunsaturated organic compounds having 4 to 16 carbon atoms in the presence of methyl chloride and in the presence of Friedel-Crafts catalysts proceeds particularly advantageously by performing copolymerisation in the presence of linear, branched and/or cyclic alkanes.