| 摘要 |
A stabilizer mixture containing A) either (A1) at least one compound of the form ula <IMG> in which R1 is for example C1-C10alkyl; R2 is C3-C10alkylene; R3 is for example hydrogen or C1-C8alkyl; and n1 is a number fro m 2 to 50; or (A2) a product obtainable by reacting a product - obtained by reaction of a p olyamine of the formula <IMG> in which n2', n2" and n2"' are a number from 2 to 12 with cyanuric chloride - with a compound of the formul a <IMG> wherein R4 is for example hydrogen or C1-C12alkyl; and R5 is as defined for R3; B) magnesium oxide, magnesium hydroxide, zinc oxide, zinc hydrox ide or an organic salt of zinc or magnesium, or a hydrotalcite; and C) either (C1) an UV a bsorber or (C2) a pigment or (C3) an UV absorber and a pigment; with the proviso that, when component A) is a product obtainable by reacting a p roduct - obtained by reaction of the above polyamine with cyanuric chloride - with the above 2,2,6,6-tetramethyl-4-piperidylamine, component B) is magnesium oxide, magnesium hydroxide or an organic salt of zinc or magnesium, or a hydrotalcite. This stabilizer mixture is useful for stabilizing polyolefins against light-indu ced degradation.
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