Process for extruding plastic compositions

US10836076B2 · kind B2 · utility

Assignee

• Covestro Deutschland AG · DE

Inventors

• Michael Bierdel · Leverkusen, DE
• Thomas Koenig · Leverkusen, DE
• Carsten Conzen · Leverkusen, DE
• Ulrich Liesenfelder · Bensberg, DE
• Klemens Kohlgrueber · Kürten, DE
• Reiner Rudolf · Leverkusen, DE
• Johann Rechner · Krefeld, DE

Key dates

• Filing date: Oct 25, 2018
• Grant date: Nov 17, 2020
• Expiry date: Apr 12, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C48/03
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for extruding plastic compositions is provided. The process comprises providing a multi-screw extruder with screw elements and conveying, kneading, mixing, degassing or compounding the plastic compositions in the multi-screw extruder using the screw elements.