The present invention relates to oxygen-substituted sterically hindered amines of the formulae I or II: (II), wherein, for example, F
2
, R
3
, R
5
, R
6
, R
8
, R
9
, R
11
, R
12
, R
13
, R
14
are n-butyl; Z
1
to Z
10
are propoxy and R
1
, R
4
, R
7
, R
10
, R
13
are 2,2,6,6-tetramethyl-1-propoxy-piperidin-4-yl. Compositions comprising compounds of formulae I or II and an organic material, which is susceptible to oxidative, thermal or light-induced degradation, are further disclosed. Optionally, further additives are contained.
本发明涉及公式I或II的含氧立体阻碍胺化合物:(II),其中,例如,F2,R3,R5,R6,R8,R9,R11,R12,R13,R14为正丁基;Z1至Z10为丙氧基,而R1,R4,R7,R10,R13为2,2,6,6-四甲基-1-丙氧基
哌啶-4-基。此外,还公开了包含公式I或II化合物和易于氧化、热降解或光诱导降解的有机材料的组合物。可选地,还包含其他添加剂。