| abstract |
Bicyclic piperidine compounds of the general formula (I) <IMAGE> (I) in which R1 is hydrogen, O., OH, NO, CH2CN, C1-C8-alkyl, allyl, benzyl, C1-C8-acyl, OH-monosubstituted C2-C4-alkyl, 2,3-epoxypropyl, C1-C18-alkyloxy, C5-C12-cycloalkyloxy or 2,3-dihydroxypropyl and R2 is a direct bond or -CH2-, can be used as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular, synthetic polymers. |