DETAILED DESCRIPTION OF THE INVENTION [0018] The melt blends of two or more phosphites optionally containing polymer additives such as a hindered phenolic antioxidant, light stabilizers such as a UV absorber or a hindered amine, or other additives such as a peroxide scavenger, a metal deactivator, a basic co-stabilizer, a nucleating agent, an optical brightener, an acid scavenger, and the like, ar