Oxazoline compounds as stabilizers

US5962683A · kind A · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Alfred Steinmann · Praroman, CH
• Rolf Mulhaupt · Marly, CH

Key dates

• Filing date: Jun 17, 1997
• Grant date: Oct 5, 1999
• Expiry date: Jun 17, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/353
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A description is given of compounds of the formula I ##STR1## where r is 0 or 1 and y is a number from the range 1-3; X is a direct bond or --NR.sub.8 --, --CO--, --CONH-- or --COO-- or a divalent aliphatic or mixed aromatic-aliphatic C.sub.1 -C.sub.18 hydrocarbon radical; PA1 Z is an aromatic, aliphatic or mixed aromatic-aliphatic C.sub.3 -C.sub.18 hydrocarbon radical which is interrupted in the aliphatic moiety by one or more divalent functional groups, in each case in a carbon-carbon single bond, and/or in the aromatic or aliphatic moiety by one or more divalent functional groups, in each case in a carbon-hydrogen bond, possible functional groups being --O--, --NR.sub.8 --, --S--, --SO--, --SO.sub.2 --, --CONH--, --CO-- or --COO--; PA1 R is a mono-, di- or trivalent radical of a sterically hindered amine or of a UV absorber from the class of the 2-hydroxyphenylbenzotriazoles, 2-hydroxyphenylbenzophenones, oxalanilides or 2-hydroxyphenyl-4,6-diaryltriazines or a di- or trivalent radical of a sterically hindered phenol; PA1 R.sub.1 and R.sub.2, independently of one another, are H or C.sub.1 -C.sub.12 alkyl; PA1 R.sub.3 and R.sub.4, independently of one another, are H, C.sub.1 -C.s…