Process for the preparation of ethylene/vinyl acetate copolymers with reduced tendency to tackiness, new ethylene/vinyl acetate copolymers and their use

US5135988A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Kurt P. Meurer · Leverkusen, DE
• Gerd Sylvester · Leverkusen, DE
• Christian Ohm · Gernsheim, DE
• Hugo Zimmermann · Cologne, DE
• Herbert Bartl · Odenthal, DE

Key dates

• Filing date: Jul 17, 1989
• Grant date: Aug 4, 1992
• Expiry date: Jul 17, 2009

Classification

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

Abstract

Ethylene/vinyl acetate copolymers containing very high molecular weight components and having a reduced tendency to tackiness may be obtained by a further addition of ethylene during the process of solution polymerization at a moderate pressure.