Substance mixtures containing stabilizers and compounds containing vinyl groups

US6200460A · kind A · utility

Assignee

• BASF SE

Inventors

• Heinz Friedrich Sutoris · Bischofswerda, DE
• Hermann Uhr · Krefeld, DE
• Konrad Mitulla · Ludwigshafen, DE
• Jürgen Schröder · Ludwigshafen, DE
• Roland Merger · Bad Schönborn, DE
• Knut Kessel · Mannheim, DE

Key dates

• Filing date: Dec 16, 1998
• Grant date: Mar 13, 2001
• Expiry date: Dec 16, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S585/95
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Substance mixtures comprising PA1 (A) vinyl-containing compounds, PA1 (B) an active amount of a mixture inhibiting the premature polymerization of the vinyl-containing compounds, comprising PA2 (i) at least one N-oxyl compound of a secondary amine which carries no hydrogen atoms on the .alpha.-C atoms, and PA2 (ii) at least one iron compound, PA1 (C) if appropriate nitro compounds, and PA1 (D) if appropriate costabilizers, a process for inhibiting the premature polymerization of vinyl-containing compounds (A) and the use of mixture (B), if appropriate as a mixture with nitro compounds (C) and/or costabilizers (D), for inhibiting the premature polymerization of free radical polymerizable compounds and for stabilizing organic materials against the damaging action of free radicals.