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    • 9. 发明公开
    • NOVEL STERICALLY HINDERED AMINE LIGHT STABILIZERS
    • NEUARTIGE STERISCH GEHINDERTE AMIN-LICHTSTABILISATOREN
    • EP2440557A1
    • 2012-04-18
    • EP10724441.0
    • 2010-06-01
    • BASF SE
    • SCHÖNING, Kai-UweEDENHARTER, AdrianaHAUCK, Stefan
    • C07D471/10
    • C07D471/10
    • The instant invention pertains to sterically hjndered amine Nght stabilizers (HALS) with low basicity at the nitrogen atom and high thermal stability. They are characterized by their spiro- substitution in the 4-position of the tetramethylpiperidine ring (Spiro-NOR-HALS). These compounds are particularly effective in stabilizing polymers, especially thermoplastic polyolefins, against the deleterious effects of oxidative, thermal and actinic radiation. The compounds are also particularly effective in stabilizing acid catalyzed and ambient cured coatings systems. They are particularly useful when high processing temperatures are additional required.
    • 本公开涉及在氮原子上具有低碱度的空间位阻胺光稳定剂(HALS)和高热稳定性。 它们的特征在于它们在四甲基哌啶环的4-位上的螺取代(Spiro-NOR-HALS)。 这些化合物可用于稳定聚合物,特别是热塑性聚烯烃,以抵抗氧化,热和光化辐射的有害影响。 该化合物也可用于稳定酸催化和环境固化的涂料体系。 当需要额外的加工温度时,它们特别有用。