Stabilizing composition I

US7196135B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Thomas Heidenfelder · Münstermaifeld, DE
• Manfred Appel · Gaildorf, DE

Key dates

• Filing date: Dec 13, 2002
• Grant date: Mar 27, 2007
• Expiry date: Apr 8, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/025
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A stabilizer composition is described and comprises a 3-arylacrylate, a polymeric compound with molecular weight at least 2000, bearing, on a polymeric framework, side groups having amine functions, where all of the substituents in the α-position to the amine nitrogen atom are other than hydrogen, and comprises a sterically hindered phenol. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.