| abstract |
Disclosed herein are stabilizer compositions for stabilizing materials against degradation by heat and ultraviolet light exposure. In some cases, the stabilizer composition comprises an ortho-hydroxy cis-aryl-s-triazine compound; a hindered amine light stabilizer compound; a hindered hydroxybenzoate compound; a phosphite compound, an acid scavenger, and/or Or a thioester; and a hindered phenol antioxidant compound. |