The ultraviolet ray stabilizer, 4 where it is the antioxidant and the colorant ' the - hydroxy acetophenone, the 4 hydroxystyrene, the 1,1,1 tris (4 ' - hydroxyphenyl) ethane, and the 1,3,5 tris (4 ' - hydroxyphenyl) the useful tris (

摘要

Monomeric benzotriazole, benzophenone, 3,3-diphenyl-2-cyanoacrylate, 2,2,6,6-tetramethylpiperidine, hindered phenol, and diazo derivatives of 4'-hydroxyacetophenone, 4-hydroxystyrene, 1,1,1-tris(4'-hydroxyphenyl)ethane, 1,3,5-tris(4'-hydroxyphenyl)benzene, and the like are disclosed. When included in polymer formulations as monomeric species or as monomers covalently incorporated into an oligomeric or polymeric structure, or as additives, such derivatives impart color or resistance to free radical, oxidative, or ultraviolet (UV) light-induced degradation.