Tris-aryl-s-triazines which contain from one to three resorcinol derived moieties with at least one of said moieties substituted at the 5-position with an alkyl, phenylalkyl, halogen, thio or sulfonyl group have UV spectra which are red-shifted to the near UV range and provide excellent stabilization to polymeric substrates against the deleterious effects of actinic light.
三芳基-s-三嗪含有一至三个
间苯二酚衍生分子,其中至少一个分子在 5 位被烷基、
苯基、卤素、
硫或磺酰基取代,其紫外光谱在近紫外范围内发生红移,能很好地稳定
聚合物基质,使其免受光辐射的有害影响。