3-tert-butyl-4-hydroxyphenylpropionic acid amino-alkylamide derivatives

US4785107A · kind A · utility

Assignee

• BASF SE

Inventors

• Reinhard Helwig · Ludwigshafen, DE
• Peter Neumann · Wiesloch, DE
• Herbert Bender · Haßloch, DE
• Alexander Aumueller · Deidesheim, DE
• Hubert Trauth · Dudenhofen, DE

Key dates

• Filing date: Jun 12, 1986
• Grant date: Nov 15, 1988
• Expiry date: Jun 12, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/3432
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The novel phenol derivatives of the general formula (I) ##STR1## where R is hydrogen, straight-chain or branched C.sub.1 -C.sub.8 -alkyl or cycloalkyl, A is a bridge member and B is a radical of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and T.sup.1 independently of one another are each hydrogen, C.sub.1 -C.sub.8 -alkyl, halogen, CN, COOT.sup.2 or CONHT.sup.2, with the proviso that one or more of the radicals R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and T.sup.1 are halogen, CN, COOT.sup.2 and CONHT.sup.2 and T.sup.2 is C.sub.1 -C.sub.8 -alkyl, are useful for stabilizing organic material, in particular polyolefins, to degradation by oxidation.