Use of 4-cyano-naphthalene-1, 8-dicarboximide derivatives and related compounds to protect organic material from the damaging effects of light

US7714044B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Simon Schambony · Ludwigshafen, DE
• Alban Glaser · Mannheim, DE
• Ruediger Sens · Mannheim, DE
• Arno Boehm · Mannheim, DE
• Helmut Reichelt · Neustadt, DE

Key dates

• Filing date: Nov 12, 2004
• Grant date: May 11, 2010
• Expiry date: Nov 12, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D221/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A description is given of the use of naphthalene-1,8-dicarboxylic monoimides of the formula (I), in which R1 is hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl or heteroaryl and R2 is a radical containing at least one π electron system containing a carbon atom and at least one further atom selected from carbon, oxygen, and nitrogen, with the proviso that the radical contains at least one atom other than carbon; to protect organic material from the damaging effects of light, of compositions which comprise at least one naphthalene-1,8-dicarboxylic monoimide of the formula (I) in an amount which provides protection from the damaging effects of light, and at least one organic material, and of new naphthalene-1,8-dicarboxylic monoimides (I).