Benzotriazole UV absorbers which are substituted at the 5-position of the benzo ring by an electron withdrawing group exhibit enhanced durability and very low loss rates when incorporated into automotive coatings.
苯并三唑
紫外线吸收剂,在苯环的5位被电子提取基团取代时,当加入到汽车涂料中时,表现出增强的耐久性和非常低的损失率。