Liquid substituted 2H-benzotriazole mixtures, stabilized compositions
    10.
    发明授权
    Liquid substituted 2H-benzotriazole mixtures, stabilized compositions 失效
    液体取代的2H-苯并三唑混合物,稳定的组合物

    公开(公告)号:US5240975A

    公开(公告)日:1993-08-31

    申请号:US803303

    申请日:1991-12-04

    CPC classification number: C08K5/3475 C07D249/20 G03C1/8155 Y10S430/106

    Abstract: Liquid substituted 2H-benzotriazole mixtures are prepared by alkylation with concomitant dealkylation, fragmentation and realkylation of 2-(2-hydroxy-5-alkylphenyl)-2H-benzotriazoles or of 2-(2-hydroxy-3,5-dialkylphenyl)-2H-benzotriazoles with straight or branched alkenes of 8 to 30 carbon atoms in the presence of an acid catalyst at 100.degree.-200.degree. C. The liquid mixtures exhibit outstanding efficacy in protecting organic substrates from light induced deterioration as well as good resistance to loss by volatilization or exudation during the processing of stabilized compositions at elevated temperatures.

    Abstract translation: 液体取代的2H-苯并三唑混合物通过烷基化,通过2-(2-羟基-5-烷基苯基)-2H-苯并三唑或2-(2-羟基-3,5-二烷基苯基)-2H的伴随脱烷基化,断裂和重烷基化 - 苯并三唑在酸性催化剂存在下,在100°-200℃下具有8至30个碳原子的直链或支链烯烃。液体混合物在保护有机基质免受光诱导的变质以及良好的耐损失性 在稳定的组合物在高温下加工过程中的挥发或渗出。

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