| 摘要 |
Stabilizer system consisting of (A) AT LEAST ONE STERICALLY HINDERED CYCLIC AMINE OF THE FORMULA I <IMAGE> (I) in which q is 1 or 2, X represents an organic grouping which complements the nitrogen-containing ring to give a 5-membered, 6-membered or 7-membered ring, R1 and R2 represent methyl or together represent -(CH2)5-, R3 represents methyl, R4 represents alkyl with 1-5 carbon atoms or together with R3 represents the radicals -(CH2)4-, -(CH2)5- <IMAGE> and, if q is 1, Y denotes hydrogen, -0., hydroxyl, alkyl, substituted akyl, alkenyl, alkinyl, aralkyl, substituted aralkyl or acyl or, if q is 2, Y denotes alkylene, alkenylene, alkinylene, cycloalkylene or aralkylene, and (B) AT LEAST ONE CO-STABILIZER FOR STABILIZING PLASTICS.
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