TETRAKIS(2,6-DI-T-BUTYL-4-SUBSTITUTED PHENYL)4,4'- SUBSTITUTEDBISPHENYL DIPHOSPHITES

摘要

Tetrakis(2,6-di-t-butyl-4-substituted phenyl) 4,4'-substitutedbisphenyl diphosphites that are prepared from a hindered phenol and a non-hindered bisphenol have been found to be excellent stabilizers for organic materials subject to degradation, and form even more effective combinations with hydroxyphenylalkyleneyl isocyanurates, substantially and synergistically enhancing the stabilizing efficiency of the isocyanurate.