abstract |
An additive mixture containing (A) at least one compound of the formula (I) wherein R 1 and R 2 independently of one another are hydrogen, C 1 -C 22 alkyl, —O—, —OH, —CH2CN, C 1 -C 18 alkoxy, C 2 -C 18 alkoxy substituted by —OH; C 5 -C 12 cycloalkoxy, C 3 -C 6 alkenyl, C 3 -C 6 alkenyloxy, C 7 -C 9 phenylalkyl unsubstituted or substituted on the phenyl by 1, 2 or 3 C 1 -C 4 alkyl; or C 1 -C 8 acyl; and R 3 and R 4 independently of one another are C 1 -C 22 alkyl or a group of the formula (Ia) wherein R 0 has one of the meanings of R 1 and R 2 , and (B) at least one anti-scratch additive. |