Preparation of cyano-containing copolymers based on ethylene

US5006609A · kind A · utility

Assignee

• BASF SE

Inventors

• Michael Buback · Bovenden, DE
• Stefan Rohde · Oettingen, DE

Key dates

• Filing date: Jan 9, 1990
• Grant date: Apr 9, 1991
• Expiry date: Jan 9, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2800/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A product which is suitable for producing films and moldings and for use as a coating agent comprises a cyano-containing copolymer A based on ethylene composed of PA0 (a) predominant proportions of the structural unit of ethylene, PA0 (b) minor proportions of the structural unit of the general formula Ia ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, and (c) optional structural units derived from other comonomers, which is prepared by reacting a base copolymer B formed from predominant proportions of ethylene, minor proportions of an .alpha., .beta.-unsaturated carboxylic ester of the general formula Ib ##STR2## where R.sup.2 is C.sub.1 -C.sub.8 -alkyl, and further, optional comonomers, with ammonia at 120.degree.-280.degree. C. and 150-2,500 bar.