Stabilizer mixtures

A stabilizer mixture containing the components (A) and (B) wherein

• component (A) is
• a compound of the formula (A-1)
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• wherein
• A1 is hydrogen or C1-C4alkyl,
• A2 is a direct bond or C1-C10alkylene, and
• n1 is a number from 2 to 50;
• at least one compound of the formulae (A-2-a) and (A-2-b)
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• n2 and n2* are a number from 2 to 50;
• a compound of the formula (A-3)
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• wherein
• A3 and A4 independently of one another are hydrogen or C1-C8alkyl, or A3 and A4 together form a C2-C14alkylene group, and
• the variables n3 independently of one another are a number from 1 to 50;
• or
• a compound of the formula (A-4)
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• wherein
• n4 is a number from 2 to 50,
• A5 is hydrogen or C1-C4alkyl,
• the radicals A6 and A7 independently of one another are C1-C4alkyl or a group of the formula (a-I)
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• wherein A8 is hydrogen, C1-C8alkyl, O−, —OH, —CH2CN, C1-C18alkoxy, C5-C12cycloalkoxy, C3-C6alkenyl, C7-C9phenylalkyl unsubstituted or substituted on the phenyl by 1, 2 or 3 C1-C4alkyl;
• or C1-C8acyl,
• with the proviso that at least 50% of the radicals A7 are a group of the formula (a-I);
• and component (B) is formed by two different low molecular weight sterically hindered amine compounds containing a group of the formula (I) or (II);
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• with the proviso that components (A) and (B) are different.