申请人:Ciba Specialty Chemicals Corporation
公开号:US05942626A1
公开(公告)日:1999-08-24
2-(2-Hydroxyphenyl)-2H-benzotriazole UV-absorbers substituted at the 5-position of the benzo ring by a thioether 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位被硫醚基取代的2-(2-羟基苯基)-2H-苯并三唑UV吸收剂,在近可见范围(超过350nm)表现出增强的吸收性能,使得这些化合物在保护易受长波紫外线(波长大于350nm)辐射引起降解的高分子体系方面特别有效。