2H-Benzotriazole UV absorbers substituted at the 3-position and/or the 5-position of the phenyl ring by a phenyl moiety which is substituted by a heteroatom are particularly photostable in automotive coatings, and are of low color and exhibit low volatility in thermoplastic compositions.
3-位和/或5-位被苯基环上的苯基取代的2H-苯并三唑
紫外线吸收剂,其被异原子取代的苯基特别在汽车涂料中具有光稳定性,并且在热塑性复合材料中具有低色度和低挥发性。