Photostable, silylated benzotriazole UV absorbers and compositions stabilized therewith
申请人:——
公开号:US20020115753A1
公开(公告)日:2002-08-22
Photostable, silylated benzotriazole compounds of formula (I) or (II)
1
where at least one of E
1
, E
2
, E
5
, E
8
, E
9
, G
2
and G
7
is a silylated group; and G
2
and/or G
7
is an electron withdrawing moiety or E
1
is &agr;-cumyl, are both photostable and particularly compatible in high performance coatings such as organopolysiloxanes.
式(I)或(II)的光稳定性硅烷化苯并三唑化合物
1
其中 E
1
, E
2
, E
5
, E
8
, E
9
, G
2
和 G
7
是硅烷基化基团;而 G
2
和/或 G
7
是取电子基团或 E
1
是&agr;-cumyl,都具有光稳定性,特别适用于高性能涂料,如有机聚硅氧烷。