Oxazoline compounds as stabilizers

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; 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--; 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; R.sub.1 and R.sub.2, independently of one another, are H or C.sub.1 -C.sub.12 alkyl; R.sub.3 and R.sub.4, independently of one another, are H, C.sub.1 -C.sub.18 alkyl or --X--(Z).sub.r --R.sub.5 ; R.sub.5 is a monovalent 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 radical of a sterically hindered phenol; and R.sub.8 is H, C.sub.1 -C.sub.18 alkyl, C.sub.7 -C.sub.11 phenylalkyl, C.sub.2 -C.sub.6 alkoxyalkyl or C.sub.5 -C.sub.12 cycloalkyl. Compounds of the formula I can be employed with advantage for stabilizing organic material against the damaging effect of light, oxygen and/or heat.

Dependencies are inferred from the claim text.