申请人:Ciba-Geigy Corporation
公开号:US05436349A1
公开(公告)日:1995-07-25
2-(2-Hydroxyphenyl)-2H-benzotriazole UV-absorbers substituted at the 5-position of the benzo ring by a sulfoxide or sulfone group exhibit enhanced absorption in the near visible range (over 350 nm) allowing said compounds to be particularly effective in protecting polymer systems which are prone to degradation caused by actinic irradiation with wavelengths over 350 nm.
在苯环的5位被亚砜或砜基取代的2-(2-羟基苯基)-2H-苯并三唑UV吸收剂在近可见光范围(超过350 nm)表现出增强的吸收能力,使得这些化合物在保护易受350 nm以上波长的光化学降解影响的高分子体系方面特别有效。