| abstract |
Disclosed is an organic material antioxidant composition useful as active ingredients a) a hindered phenol compound of the formula (I): b) at least one metal compound, wherein the metal is selected from the group consisting of Groups I, II and IV of the Periodic Table of Elements according to IUPAC Recommendations 1985, wherein the weight ratio of component b) in the form of the metal to the total amount of the constituents a) and b) is 1 ppm or more, and an organic material composition containing the antioxidant composition. |