Stabilisers for inanimate organic materials

US8377192B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Alban Glaser · Mannheim, DE
• Sylke Haremza · Neckargemünd, DE
• Simon Schambony · Ludwigshafen, DE

Key dates

• Filing date: Aug 14, 2009
• Grant date: Feb 19, 2013
• Expiry date: Sep 9, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D211/94
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to the use of sterically hindered amines comprising one or more groups of the general formula (I)to stabilize inanimate organic material, more particularly plastics or coating materials, where R1 and R2 each independently, alike or different, are H, C1-C20 alkyl, C3-C15 cycloalkyl, aryl, hetaryl or a heterocycle, R4, R5, R6, and R7 each independently, alike or different, are C1-C20 alkyl, or R4 and R6 or R5 and R7 together are a tetramethylene or pentamethylene group, and R3 is aryl or hetaryl. The invention further relates to methods of stabilizing inanimate organic material, especially plastics or coating materials. Additionally provided by the invention are selected sterically hindered amines comprising one or more groups of the general formula (I). Additionally provided by the invention are materials that comprise selected sterically hindered amines.