Use of hydroxyphenylurethanes for stabilising elastomers

Abstract

The use of compounds of the formula I ##SPC1## wherein R.sub.1 denotes alkyl with 3 or 4 carbon atoms, R.sub.2 denotes alkyl with 1 - 4 carbon atoms, R.sub.3 denotes hydrogen or methyl, n denotes 1 or 2 and R.sub.4, if n is 1, denotes alkyl with 8 - 14 carbon atoms, cycloalkyl with 5 or 6 carbon atoms, benzyl, phenyl, phenyl substituted by 1 to 2 alkyl groups and/or alkoxy groups each with 1 - 8 carbon atoms, phenylthioalkyl with 8- 9 carbon atoms or aradical of the formula --(CH.sub.2).sub.m --X--R (Ia) Wherein X is oxygen or sulphur, R is alkyl with 1 - 4 carbon atoms and m is 2 or 3, or, if n is 2, denotes alkylene with 2 - 8 carbon atoms, phenylene or a radical of the formula --(CH.sub.2).sub.m --X--(CH.sub.2).sub.g -- (Ib) wherein X is oxygen or sulphur and m and q independently of one another are 2 or 3, for stabilising elastomers.

Dependencies are inferred from the claim text.