Preparation of homogeneous ionically crosslinked ethylene copolymer in twin screw extruder

US5189113A · kind A · utility

Assignee

• BASF SE

Inventors

• Thomas Muehlenbernd · Heidelberg, DE
• Norbert Hasenbein · Dirmstein, DE
• Gernot Koehler · Ludwigshafen, DE
• Lothar Schlemmer · Frankenthal (Pfalz), DE

Key dates

• Filing date: Jun 14, 1989
• Grant date: Feb 23, 1993
• Expiry date: Jun 14, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/919
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Ionically crosslinked ethylene copolymers are prepared by reacting the corresponding ethylene copolymer in a mixing zone of a twin-screw extruder with a solid metal compound and subsequently pumping in water, and are used as adhesion promoters, laminating films, injection molded articles or cable sheathing.