Polytriazine derivatives containing polyalkylpiperidinyloxy or polyalkylpiperidinylamino groups

Abstract

Compounds of the formula (I) ##STR1## wherein n is a number from 1 to 20; the radicals R.sub.1 are independently of one another hydrogen, C.sub.1 -C.sub.8 alkyl, --O, --OH, --CH.sub.2 CN, C.sub.1 -C.sub.18 alkoxy, C.sub.5 -C.sub.12 cycloalkoxy, C.sub.3 -C.sub.6 alkenyl, C.sub.7 -C.sub.9 phenylalkyl which is unsubstituted or substituted on the phenyl by 1, 2 or 3 C.sub.1 -C.sub.4 alkyl; or C.sub.1 -C.sub.8 acyl; R.sub.2 has one of the meanings given for R.sub.1 ; X is C.sub.2 -C.sub.10 alkylene; and Y is --O-- or >NH; with the proviso that in the individual recurrent units of the formula (I), each of the radicals R.sub.1, R.sub.2, X and Y has the same or different definitions; are very effective as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers.

Dependencies are inferred from the claim text.