申请人:——
公开号:US20030109609A1
公开(公告)日:2003-06-12
A compound of the formula (I) wherein G
1
, G
2
, G
3
and G
4
are independently of one another C
1
-C
18
alkyl or C
5
-C
12
cycloalkyl or the radicals G
1
and G
2
and the radicals G
3
and G
4
form independently of one another, together with the carbon atom they are attached to, C
5
-C
12
cycloalkyl; R is hydrogen, C
1
-C
18
alkyl, oxyl, —OH, —CH
2
CN, C
3
-C
6
alkenyl, C
3
-C
8
alkynyl, C
7
-C
12
phenylalkyl unsubstituted or substituted on the phenyl radical by C
1
-C
4
alkyl and/or C
1
-C
4
alkoxy; C
1
-C
8
acyl, C
1
-C
18
alkoxy, C
1
-C
18
hydroxyalkoxy, C
2
-C
18
alkenyloxy, C
5
-C
12
cycloalkoxy, C
7
-C
12
phenylalkoxy unsubstituted or substituted on the phenyl radical by C
1
-C
4
alkyl and/or C
1
-C
4
alkoxy: C
1
-C
18
alkanoyloxy, (C
1
-C
18
alkoxy)carbonyl, glycidyl or a group —CH
2
CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; and X is an organic radical of a valency equal to n; and when n is 2, 3 or 4, each of the radicals G
1
, G
2
, G
3
, G
4
and R can have the same or a different meaning in the units of the formula (II), is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.
式(I)的化合物,其中G1、G2、G3和G4彼此独立地是C1-C18烷基或C5-C12环烷基,或者基团G1和G2以及基团G3和G4彼此独立地与它们附着的碳原子一起形成C5-C12环烷基;R是氢、C1-C18烷基、氧基、—OH、—CH2CN、C3-C6烯基、C3-C8炔基、C7-C12苯基烷基,未取代或通过C1-C4烷基和/或C1-C4烷氧基取代苯基上的苯基基团;C1-C8酰基、C1-C18烷氧基、C1-C18羟基烷氧基、C2-C18烯氧基、C5-C12环烷氧基,未取代或通过C1-C4烷基和/或C1-C4烷氧基取代苯基上的C7-C12苯基氧基;C1-C18烷酰氧基、(C1-C18烷氧基)羰基、环氧乙基或一个基团—CH2CH(OH)(G),其中G是氢、甲基或苯基;n为1、2、3或4;X是价数等于n的有机基团;当n为2、3或4时,式(II)的各单元中的G1、G2、G3、G4和R的每一个可以具有相同或不同的含义,对于抵抗光、热或氧化引起的有机材料降解具有稳定作用。