申请人:Ciba-Geigy Corporation
公开号:US04798822A1
公开(公告)日:1989-01-17
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.
公式I或II的化合物,其中m为1或2,A是支链或非支链的1,2-或1,3-烷基,或o-苯基,E是III或IIIa族,R是氢或甲基,R.sup.1和R.sup.3是氢,烷基,烯基,芳基烷基,脂肪酰基,烯酰基,苯甲酰基或氰甲基,R.sup.2是价态为m的基团,R.sup.4是单价基团,对聚合物,特别是对聚烯烃的加工稳定剂具有有效的作用,并且还具有稳定光损伤的作用。