| abstract |
2,6-di-t-butyl-4-substituted phenyl bis(3,6-di-t-butyl-2-nnaphthyl)phosphites, readily prepared by reacting together na phosphorodichloridite of a 4-substituted-2,6-di-t-nbutylphenol and a sodium salt of 3,6-di-t-butyl-2-naphthol, to nform antioxidant and ultraviolet stabilizers that form parnticularly effective combinations with hydroxyphenylalnkyleneyl isocyanurates to provide enhanced oven aging nproperties to organic materials subject to attack by heat and noxygen. |