申请人:Ciba-Geigy Corporation
公开号:US04618440A1
公开(公告)日:1986-10-21
The title compounds correspond to the formula ##STR1## where R.sub.1 is tert-butyl, R.sub.2 is methyl or tert-butyl, R.sub.3, R.sub.4 and R.sub.7 are hydrogen, R.sub.5 and R.sub.8 are hydrogen or methyl, and R.sub.6 is hydrogen, alkyl of 1 to 3 carbon atoms or phenyl, and are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.
这些标题化合物对应于公式##STR1##其中R.sub.1是叔丁基,R.sub.2是甲基或叔丁基,R.sub.3、R.sub.4和R.sub.7是氢,R.sub.5和R.sub.8是氢或甲基,R.sub.6是氢、1至3个碳原子的烷基或苯基,可用作有机聚合物和润滑油的稳定剂,以对抗热、光和空气的降解作用。