Immediate termination of free radical polymerizations

USH1957H · kind H · statutory invention registration

Assignee

• BASF SE

Inventors

• Michael Fried · Heidelberg, DE
• Gerhard Nestler · Ludwigshafen, DE
• Paul Leon Kageler · Lake Jackson, US
• Lawrence E. James

Key dates

• Grant date: Apr 3, 2001

Classification

• Technology area (CPC —): General

Abstract

Free radical polymerizations are immediately terminated by adding a phenothiazine-containing solution whose solvent comprises at least 50% of its weight of an N-alkylpyrrolidone.