Process for producing ABS graft copolymers

US11499044B2 · kind B2 · utility

Assignee

• INEOS STYROLUTION GROUP GMBH · DE

Inventors

• Gisbert Michels · Leverkusen, DE
• Ulrich Jansen · Düsseldorf, DE
• Stefan Kaminsky · Neustadt an der Weinstraße, DE
• Nils WITTENBERG · Hofheim, DE
• Fabian Rueter · Neuss, DE

Key dates

• Filing date: Apr 23, 2018
• Grant date: Nov 15, 2022
• Expiry date: Apr 6, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2207/53
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for producing graft copolymers based on acrylonitrile-butadiene-styrene copolymers (ABS), wherein the graft copolymers may be dewatered particularly readily after production and precipitation and have a low residual moisture content after centrifugation. The invention further relates to a process for producing thermoplastic molding materials using the thus obtained ABS graft copolymers.