Compounds possessing both a hindered amine moiety, such as a derivative of 2,2,6,6-tetramethylpiperidine, and a hydroxylamine moiety where the N-hydroxy group is not attached to a nitrogen atom in a piperidine ring are valuable stabilizers for protecting polymer compositions against the deleterious effects of actinic light and from the adverse effects of high temperature polymer processing environments.
同时具有受阻胺基团(如
2,2,6,6-四甲基哌啶衍
生物)和羟
肟基团的化合物,其中N-羟基基团未附着在
哌啶环中的氮原子上,对于保护聚合物组合物免受光
化学反应和高温聚合物加工环境的不利影响是有价值的稳定剂。