| 摘要 |
Sulfoxides of bisthiomethylated and tristhiomethylated phenols of formulae I and II <IMAGE> (I) <IMAGE> (II) wherein R1 is hydrogen, C1-C18alkyl, cyclohexyl or C7-C9phenylalkyl, R2 and R3 are each independently of the other hydrogen or methyl, R4 is C4-C18alkyl, phenyl, C7-C9phenylalkyl, C1-C4alkyl-substituted phenyl, hydroxyethyl or a radical -(CH2)rCOOR5, wherein r is 1 or 2 and R5 is C1-C18alkyl, Z is sulfur <IMAGE> wherein R2 and R3 are as defined above, or are a direct bond, and n, m and p are each independently of one another 0 or 1, and mixtures thereof with the corresponding non-oxidized compounds, are suitable stabilizers for materials which are sensitive to oxidative, thermal and/or light-induced degradation.
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