申请人:Ciba-Geigy Corproation
公开号:US04999392A1
公开(公告)日:1991-03-12
Novel piperidine compounds of the general formula (I) ##STR1## in which m is an integer from 1 to 4, R.sub.1 and R.sub.2 are as defined in claim 1 and at least one 2,2,6,6-tetramethylpiperidinyl group, being present in R.sub.1 or R.sub.2 are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic material, especially for synthetic polymers.
新型吡啶化合物的一般公式(I)##STR1##其中m是1到4的整数,R.sub.1和R.sub.2如权利要求1中定义,并且至少有一个2,2,6,6-四甲基吡啶基团存在于R.sub.1或R.sub.2中,可用作有机材料的光稳定剂、热稳定剂和氧化稳定剂,特别适用于合成聚合物。