Process for preparing methacrylic acid or methacrylic esters

US9234218B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Achim Marx · Bielefeld, DE
• Markus Poetter · Munster, DE
• Stefan Buchholz · Hanau, DE
• Alexander May · Seeheim-Jugenheim, DE
• Hermann Siegert · Weiterstadt, DE
• Birgit Alber · Stuttgart, DE
• Georg Fuchs · Heitersheim, DE
• Lothar Eggeling · Jülich, DE

Key dates

• Filing date: May 30, 2008
• Grant date: Jan 12, 2016
• Expiry date: Aug 27, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12Y402/01017
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the preparation of methacrylic acid or methacrylic esters, comprising the process steps of The invention also relates to a process for the preparation of polymethacrylic acid or polymethacrylic esters.