Dovernox D-421 Blend of 1,3,5-tris (3,5-di-t-butyl-4-hydroxybenzyl )-s-triazine-2,4,6- (1H, 3H, 5H ) trione and tris ( 2,4-di-t-butylphenyl ) phosphite ICC Industries-Dover Antioxidants >> Phenolic Antioxidants >> Phosphite Polyolefins (PE, PP…) ADHESIVE Blend of phenolic and phosphite antioxidants. Used in adhesives. Dovernox 3114:Doverphos S-480 1:2 Blend of phenolic and phosphite antioxidants. Used in adhesives.