Ionic crosslinking of an ethylene copolymer in twin-screw extruder

US5003001A · kind A · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: Jun 14, 1989
• Grant date: Mar 26, 1991
• Expiry date: Jun 14, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S159/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Ionically crosslinked ethylene copolymers prepared by mixing a carboxyl-containing copolymer with an aqueous metal salt solution in the reaction zone of a twin-screw extruder and transferring the product to a devolatilization zone, and are used as adhesion promoters, injection molded articles or laminating films.