Stabilizers, in particular for thermoplastic polyurethanes

US6995230B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Hauke Malz · Diepholz, DE
• Thomas Flug · Wagenfeld, DE
• Peter Bohme · Kelkheim, DE
• Markus Kamieth · Dossenheim, DE

Key dates

• Filing date: Jul 4, 2001
• Grant date: Feb 7, 2006
• Expiry date: Feb 17, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/375
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to stabilizers containing at least two phenolic groups bonded to one another via a connecting radical (II) which is a polyol with a number-average molecular weight of from 75×F g/mol to 250×F g/mol, preferably from 100×F g/mol to 200×F g/mol, in particular from 100×F g/mol to 150×F g/mol, where the term F is the number of phenolic groups in the molecule.