abstract |
Novel piperidine compounds of the formula (I)n n in which R₁ is e.g. hydrogen or methyl, n is e.g. 1 and A is e.g. -COR₂ with R₂ being C₁-C₁₈alkyl. n The said compounds are effective as light stabilisers, heat stabilisers and oxidation stabilisers for organic materials. |