abstract |
An additive mixture containing the components (A), (B) and optionally (C), wherein component (A) is at least one compound of the formula (I) wherein p is zero or 1; m and n are independently of one another an integer from zero to 3; and the radicals R are independently of one another C 1 -C 8 alkyl, C 1 -C 8 alkoxy, hydroxy, halogen, C 1 -C 8 alkylthio, C 1 -C 8 alkylsulfoxy or 2 radicals R form together with 2 adjacent carbon atoms of the unsaturated parent ring a 5- to 7-membered carbocyclic or heterocyclic ring; component (B) is at least one compound of the formula (II) wherein x and y are independently of one; another an integer from 2 to 10; the radicals A 1 , A 2 and A 3 are independently of one another C 1 -C 10 alkyl, C 5 -C 12 cycloalkyl unsubstituted or substituted by 1 to 3 C 1 -C 10 alkyl; phenyl unsubstituted or substituted by 1 to 3 C 1 -C 10 alkyl; or C 7 -C 12 phenylalkyl, and the radicals A 2 and A 3 are additionally hydrogen; with the proviso that at least one of the radicals A 1 and A 2 is branched C 3 -C 10 alkyl, C 5 -C 12 cycloalkyl unsubstituted or substituted by 1 to 3 C 1 -C 10 alkyl; phenyl unsubstituted or substituted by 1 to 3 C 1 -C 10 alkyl; or C 7 -C 12 phenylalkyl; and component (C) is a lubricant or a mixture of lubricants. |