[EN] NOVEL STERICALLY HINDERED AMINE LIGHT STABILIZERS<br/>[FR] NOUVEAUX PHOTOSTABILISANTS D'AMINE À ENCOMBREMENT STÉRIQUE
申请人:BASF SE
公开号:WO2010142576A1
公开(公告)日:2010-12-16
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.
本发明涉及具有氮原子低碱性和高热稳定性的立体位阻胺Nght稳定剂(HALS)。它们的特点是在四甲基哌啶环的4位进行螺-取代(Spiro-NOR-HALS)。这些化合物在稳定聚合物,特别是热塑性聚烯烃,抵御氧化、热和光辐射的有害影响方面特别有效。这些化合物在稳定酸催化和环境固化涂层系统方面也特别有效。当需要高加工温度时,它们尤其有用。