abstract |
1-Hydrocarbyloxy-2,2,6,6-tetraalkylpiperidine derivatives nof 1,3,5-triazine-2,4,6-tricarboxylic acid (I) or of 2,4,6-ntris(dicarboxymethylene)-hexahydro-1,3,5-triazine (II) n nare effective light stabilizers in a wide variety of nsubstrate systems. |