FIELD: chemistry.
SUBSTANCE: present invention relates to compositions for stabilising organic materials prone to degradation caused by oxidation, heat or light, which contains a) an organic polymer prone to degradation caused by oxidation, heat or light; and b) a compound of formula I, where when n equals 1 A which is -C(=O)-OR′1, -C(=O)-N(R′2)(R′3), -CN, phenyl, which is unsubstituted, -H or -SO2-phenyl; when n equals 2, A is -C(=O)-O-Z1-O-C(=O)-; n equals 1 or 2; R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 independently represent H or C1-C4-alkoxy group; R′1 is H, C1-C22-alkyl, C4-C8-cycloalkyl, which is unsubstituted, C6-C14-aryl-C1-C4-alkyl or 1-(C1-C8-alkoxy)-2,2,6,6-tetramethylpiperidin-4-yl; R′2 and R′3 independently represent H, C1-C22-alkyl, C6-C10-aryl, C6-C14-aryl-C1-C4-alkyl or 1-(C1-C8-alkoxy)-2,2,6,6-2-tetramethylpiperidin-4-yl, or R′2 and R′3 together with a nitrogen atom to which they are bonded form a morpholine; and Z1 is C4-C8-cycloalkylene.
EFFECT: invention also relates to a compound of formula I, use thereof for stabilising organic materials prone to degradation, caused by oxidation, heat or light, an additive composition for inclusion into or application onto an organic material, prone to degradation caused by oxidation, heat or light, and method of protection of organic material.
17 cl, 5 tbl, 35 ex
