Stabilized polypropylene composition

摘要

A propylene polymer composition stabilized against oxidative degradation comprising (1) 100 parts by weight of a propylene polymer, (2) 0.001 to 5 parts by weight of a poly(tertiary-butylated p-vinyl phenol) composed substantially of monomeric units represented by the following formula (I) <IMAGE> (I) wherein R1 represents a hydrogen atom or a tertiary butyl group, and (3) 0.001 to 5 parts by weight of a dialkylthiodipropionate represented by the following formula (II) S-C2H4COOR)2 (II) wherein R represents an alkyl group containing 10 to 20 carbon atoms.