2H-Benzotriazole UV absorbers substituted at the 3-position or at the 5-position of the phenyl ring by a 1,1-diphenylalkyl moiety, particularly a 1,1-diphenylethyl group, are particularly photostable in automotive coatings, and are of low color and exhibit low volatility in thermoplastic compositions.
在汽车涂料中,3-位置或5-位置的苯环上被1,1-二苯基烷基基团(特别是1,1-二苯乙基基团)取代的2H-苯并三唑
紫外线吸收剂,具有特别的光稳定性,并且在热塑性组合物中具有低色度和低挥发性。