申请人:Ciba-Geigy Corporation
公开号:US04661594A1
公开(公告)日:1987-04-28
Compounds of the formula I or II, ##STR1## wherein m is 1 or 2, A is branched or unbranched 1,2- or 1,3-alkylene, or o-phenylene, E is a group III or IIIa, R is hydrogen or methyl, R.sup.1 and R.sup.3 are hydrogen, alkyl, alkenyl, aralkyl, alkanoyl, alkenoyl, benzoyl or cyanomethyl, R.sup.2 is a radical of valency m and R.sup.4 is a monovalent radical, are effective processing stabilizers for polymers, in particular for polyolefins, and additionally have a stabilizing action against damage by light.
化合物I或II的公式,其中m为1或2,A为支链或直链1,2-或1,3-烷基或o-苯基,E为III或IIIa基团,R为氢或甲基,R1和R3为氢、烷基、烯基、芳基烷基、脂肪酰基、烯酰基、苯甲酰基或氰甲基,R2为价态为m的基团,R4为一价基团,在聚合物中,特别是在聚烯烃中,它们是有效的加工稳定剂,并且还具有抵御光损伤的稳定作用。