Composition for the immediate stopping of a free-radical polymerization

US10221255B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ann-Kathrin Marguerre · Mannheim, DE
• Christian Raith · Mannheim, DE
• Christof Kujat · Neustadt, DE
• Friedrich-Georg Martin · Heidelberg, DE
• Daher Michael Badine · Mannheim, DE
• Karolin Geyer · Mannheim, DE
• Ansgar SCHAEFER · Karlsruhe, DE
• Nikolaus Nestle · Heidelberg, DE
• Murat Cetinkaya · Heidelberg, DE
• Eduard Schreiner · Bochum, DE
• Reiner Weiler · Freisbach, DE
• Peter Zurowski · Landau, DE

Key dates

• Filing date: Jun 15, 2016
• Grant date: Mar 5, 2019
• Expiry date: Jun 15, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/54
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A composition for the immediate stopping of a free-radical polymerization comprises a) an inhibitor for the free-radical polymerization selected from among phenothiazines, b) an aprotic solvent and c) an ionic liquid. It serves to stabilize free-radically polymerizable monomers against free-radical polymerization. For the immediate stopping of free-radical polymerizations, the composition is added to a free-radically polymerizing system.