3-arylacrylic acid ester light-protection stabilizers for organic material

US5821292A · kind A · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: May 12, 1997
• Grant date: Oct 13, 1998
• Expiry date: May 12, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K15/06
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The use of 3-arylacrylic esters I ##STR1## where Ar is an aryl radical which can additionally carry substituents, PA1 R.sup.1 is the residue of an n-hydric aliphatic polyol having up to 20 carbon atoms, where the carbon chain can be interrupted by up to 9 non-adjacent oxygen atoms, or of an n-hydric cyclo-aliphatic polyol having 5 to 20 carbon atoms in which ring carbon atoms can also be replaced by non-adjacent oxygen atoms, PA1 R.sup.2 and R.sup.3 are hydrogen or C.sub.1 --C.sub.4 -alkyl, and PA1 n is a number from l to 10, as stabilizers, in particular against the action of light, for non-living organic material.