Stabilizer mixture composed of chroman derivatives, organic phosphites or phosphonites and amines

US5807504A · kind A · utility

Assignee

• BASF SE

Inventors

• Jurgen Krockenberger · Stuttgart, DE
• Wolfgang Goetze · Frankenthal (Pfalz), DE
• Hubert Trauth · Dudenhofen, DE
• Alexander Aumuller · Neustadt, DE

Key dates

• Filing date: Aug 21, 1996
• Grant date: Sep 15, 1998
• Expiry date: Aug 21, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K15/322
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Stabilizer mixture for organic material, in particular for plastics, comprising PA1 (a) one or more chroman derivatives of the general formula I ##STR1## (b) one or more organic phosphites of the general formula II ##STR2## or an organic phosphonite of the formula III ##STR3## or mixtures of the phosphites II and the phosphonite III and c) one or more amines of the general formula IV ##STR4## where the components (a) and (b) are present in the ratio of from 1:5 to 1:14 by weight and the component (c) is present in an amount of from 0.01 to 2.0% of the weight of (a)+(b) in the stabilizer mixture.