| abstract |
The invention relates to ester mixtures of polyalkylpiperidine derivatives of the formulae I and II <IMAGE> (I) <IMAGE> (II) in which R1 is hydrogen or methyl, R2 is hydrogen, C1-12 alkyl, C3-8 alkenyl, C7-11 aralkyl, cyanomethyl or C2-4 acyl, R3 is C1-18 alkylene, C2-18 oxaalkylene, Chd 2-18 thiaalkylene, C2-18 azaalkylene or C2-8 alkenylene and R4 is C1-4 alkyl. These mixtures are suitable as stabilizers for plastics. |