Process for the preparation of ethylene/vinyl ester copolymers

US5145923A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• John Hobes · Dinslaken, DE
• Wolfgang Payer · Ulm, DE
• Werner Reimann · Frankfurt, DE

Key dates

• Filing date: Jun 18, 1991
• Grant date: Sep 8, 1992
• Expiry date: Jun 18, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F210/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

For the preparation of copolymers of ethylene, ethylene is polymerized with esters of vinyl alcohol in the absence of solvents and emulsifiers and in the presence of free radical acceptors. The addition of free radical acceptors makes it possible to increase the polymerization temperature in comparison to a procedure without the use of free radical acceptors.