Azadicarboxylic acid derivatives containing hindered amine moieties as polymer stabilisers
申请人:CIBA-GEIGY AG
公开号:EP0647626A1
公开(公告)日:1995-04-12
New azo compounds of formula I
where R₁ is hydrogen, oxyl, hydroxyl, alkyl, allyl, benzyl, alkoxy or acyl, X is -O- or -NR- where R is hydrogen or alkyl, and E is a group of formula IV
or as described in claim 1, are useful for the stabilization of polymers, particularly unsaturated elastomers, by being grafted thereon.
式 I 的新偶氮化合物
其中 R₁ 是氢、氧基、羟基、烷基、烯丙基、苄基、烷氧基或酰基,X 是 -O- 或 -NR- 其中 R 是氢或烷基,E 是式 IV 的基团
或如权利要求 1 所述,接枝到聚合物上,可用于稳定聚合物,特别是不饱和弹性体。