Phenol group-containing compounds as anti-oxidants in organic materials

Abstract

Compositions containing a) an organic material subject to oxidative, thermal or actinic degradation and b) compounds of general formula I ##STR1## wherein, for example, R.sup.1 is alkyl having from 1 to 18 carbon atoms, cycloalkyl having from 5 to 12 carbon atoms, phenyl or aralkyl having from 7 to 9 carbon atoms, R.sup.2 is --H, alkyl having from 1 to 18 carbon atoms, cycloalkyl having from 5 to 12 carbon atoms, phenyl or aralkyl having from 7 to 9 carbon atoms, and R.sup.3 is --H or CH.sub.3, and n is a number from 1 to 4 or 6, when n is 1, A is ##STR2## and, for example, R.sup.4 is --H, alkyl having from 1 to 45 carbon atoms, cycloalkyl having from 5 to 12 carbon atoms or alkenyl having from 2 to 18 carbon atoms, and each of R.sup.5 and R.sup.6, independently of the other, is --H, alkyl having from 1 to 20 carbon atoms, phenyl or cycloalkyl having from 5 to 12 carbon atoms, or, when n is 2, for example A is ##STR3## wherein a is a number from 1 to 30, x is a number from 2 to 20, B is, for example, --S--, and R.sup.7 and R.sup.8 are as defined above and b.sup.1 is a number from 2 to 10, or, when n is 3, A is ##STR4## or, when n is 4, A is ##STR5## or, when n is 6, A is ##STR6## The compounds exhibit anti-oxidative properties in the compositions. Some of the compounds are novel.

Dependencies are inferred from the claim text.