Inhibitor composition for stabilizing substances capable of free radical polymerization

US6726854B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Heinz Friedrich Sutoris · Bischofswerda, DE
• Gerhard Wagenblast · Wachenheim, DE
• Volker Schliephake · Schifferstadt, DE
• Jürgen Schröder · Ludwigshafen, DE
• Harald Keller · Ludwigshafen, DE
• Thomas Jaworek · Kallstadt, DE

Key dates

• Filing date: Jul 25, 2002
• Grant date: Apr 27, 2004
• Expiry date: Jul 25, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K15/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An inhibitor mixture containing, as components, a) at least one nitroxyl radical (derivative), b) at least one phenol (derivative) and c) at least one chemical compound which contains at least one phosphorus atom which has the oxidation state +3 is preferably used for stabilizing compounds capable of free radical polymerization.