申请人:CIBA-GEIGY AG
公开号:EP0263068A1
公开(公告)日:1988-04-06
There are described compositions comprising an organic material subject to oxidative, thermal and/or actinic degradation and at least one compound of the formula (I)
wherein
R₁ is hydrogen, alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 36 carbon atoms or -OR₃, wherein R₃ is hydrogen, alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 36 carbon atoms;
n is 1 - 4
R₂, when n is 1, hydrogen, alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aralkyl of 7 to 9 carbon atoms, or said aralkyl substituted by alkyl of 1 to 36 carbon atoms;
R₂, when n is 2, is alkylene of 2 to 12 carbon atoms, alkylidene of 2 to 6 carbon atoms, cycloalkylene of 6 to 10 carbon atoms, arylene of 6 to 10 carbon atoms or alkylenearylenealkylene of 8 to 10 carbon atoms;
R₂, when n is 3, is alkanetriyl of 3 to 6 carbon atoms; and
R₂, when n is 4, is alkanetetrayl of 4 to 6 carbon atoms;
subject to the proviso that the organic material is a polyolefin homo- or copolymer, when n is 1.
Compounds of formula (I) wherein n is 2, 3 or 4 are new.
所述组合物包含一种易氧化、热降解和/或放热降解的有机材料和至少一种式 (I) 化合物
其中
R₁ 是氢、1-36 个碳原子的烷基、5-12 个碳原子的环烷基、7-9 个碳原子的芳烷基或被 1-36 个碳原子的烷基取代的芳烷基或 -OR₃,其中 R₃ 是氢、1-36 个碳原子的烷基、5-12 个碳原子的环烷基、7-9 个碳原子的芳烷基或被 1-36 个碳原子的烷基取代的芳烷基;
n 是 1 - 4
R₂,当 n 为 1 时,氢、1 至 36 个碳原子的烷基、5 至 12 个碳原子的环烷基、7 至 9 个碳原子的芳烷基或被 1 至 36 个碳原子的烷基取代的芳烷基;
当 n 为 2 时,R₂ 是 2 至 12 个碳原子的亚烷基、2 至 6 个碳原子的亚烷基、6 至 10 个碳原子的环烷基、6 至 10 个碳原子的芳基或 8 至 10 个碳原子的亚烷基烯烃;
当 n 为 3 时,R₂ 是 3 至 6 个碳原子的烷三基;以及
当 n 为 4 时,R₂为 4 至 6 个碳原子的烷四基;
但当 n 为 1 时,有机材料为聚烯烃均聚物或共聚物。
其中 n 为 2、3 或 4 的式 (I) 化合物是新化合物。