1-Hydrocarbyloxy-2,2,6,6-tetraalkylpiperidine derivatives of 1,3,5-triazine-2,4,6-tricarboxylic acid (I) or of 2,4,6-tris(dicarboxymethylene)-hexahydro-1,3,5-triazine (II)
are effective light stabilizers in a wide variety of substrate systems.
1,3,5-三嗪-2,4,6-三羧酸 (I) 或 2,4,6-三(二羧基亚甲基)-六氢-
1,3,5-三嗪 (II) 的 1-羟基-2,2,6,6-四烷基
哌啶衍
生物
是多种底物体系中有效的
光稳定剂。