Piperidine derivatives and use thereof as stabilizers for polymers

Claim 1

Compounds having the general formula I ##STR14## in which R denotes hydrogen, a straight-chain or branched-chain alkyl radical having 1 to 18 carbon atoms, a cycloalkyl radical having 5 to 12 carbon atoms, an alkenyl radical having 3 to 18 carbon atoms, an aralkyl radical having 7 to 19 carbon atoms or an aryl radical having 6 to 12 carbon atoms; R 1 and R' 1 can be the same or different and denote hydrogen, a straight-chain or branched alkyl radical having 1 to 12 carbon atoms, an alkenyl radical having 3 to 8 carbon atoms, or an aralkyl radical having 7 to 19 carbon atoms; R 2 and R' 2 can be the same or different and denote hydrogen or methyl; X and X' can be the same or different and denote oxygen or the group N-R 3 in which R 3 denotes hydrogen, a straight-chain or branched alkyl or hydroxyalkyl radical having 1 to 12 carbon atoms, a cycloalkyl radical having 5 to 12 carbon atoms, or an aralkyl radical having 7 to 12 carbon atoms, A and A' can be the same or different and denote the radical (CH 2 )m-X" in which X" has the meaning previously defined for X and X', and is a direct bond to the triazine ring, m can be 2 or 3 and n is equal to zero or 1, and salts thereof with organic or inorganic acids.