| 摘要 |
Suitable stabilizers for organic material are a mixture comprising A. at least one oligomeric compound, comprising repeat units of the formula (I), in which the meanings of the symbols are as follows: R1 is hydrogen, C1-C6-alkyl, formyl, C2-C6-alkanoyl, C1-C12-alkoxy, C5-C6-cycloalkoxy, cyanomethyl, 2-hydroxyethyl, benzyl or a radical of the formula —CR′═CH—CO—OR″, where R′ is hydrogen, C1-C6-alkyl or a radical of the formula —CO—OR″, and R″ is C1-C18-alkyl, C5-C8-cycloalkyl, C7-C18-aralkyl, phenyl, or tolyl; R2 is a mixture composed of C14-C28-alkyl groups, where two of these alkyl groups whose number of carbon atoms is not permitted to differ by more than two respectively make up at least 30% of this mixture; R3 and R4, independently of one another, are C1-C6-alkyl; and B. at least one compound of the formula (II) or (III) where the meanings of the symbols and indices are as follows: n and m, independently of one another, are a natural number from 2 to 22, and R1, R3 and R4, independently of one another, have the meanings given in formula (I). |
