Graft copolymers based on methyl methacrylate polymers

US3933943A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerhard Fahrbach
• Erhard Seiler · Ludwigshafen, DE
• Dieter Stein

Key dates

• Filing date: Oct 24, 1973
• Grant date: Jan 20, 1976
• Expiry date: Oct 24, 1993

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G81/025
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the manufacture of graft copolymers based on methyl methacrylate polymers. The methyl methacrylate polymer is reacted with a high molecular weight organic compound containing at least one alkylene oxide unit having an alkali metal alcoholate end group, during which reaction transesterification occurs to eliminate alkali metal methoxide and cause chain joining. The graft copolymers may be used for the production of shaped articles or coating compositions and as additives, antistatic agents or adhesion promoters for plastics materials.