Catalytic process for preparing polycumylene from .alpha.-cumyl halide

US4745176A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Robert Becker · Warsaw, US
• Ludwig Bottenbruch · Krefeld, DE
• Johann Grolig · Leverkusen, DE
• Helmut Waldmann · Leverkusen, DE

Key dates

• Filing date: Dec 4, 1984
• Grant date: May 17, 1988
• Expiry date: Dec 4, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G61/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polycumylene of a relatively high degree of polymerization is obtained in a reasonable space-time yield by Friedel-Crafts alkylation of .alpha.-cumyl halide when catalyst composition, catalyst concentration and dilution ratio are selected within certain limits.