Polyolefin resin composition containing carbon black

摘要

A polyolefin resin (A) containing carbon black is blended with the following components: (B) a phenolic compound represented by the following formula (I): <IMAGE> (I) wherein R1 is alkyl of 1 to 4 carbon atoms; (C) an organic sulfur compound selected from the compounds represented by the following formulas (II-1) and (II-2): (R2-OCOCH2CH2)2S (II-1) (R2-SCH2CHCOOCH2)4C (II-2) wherein R2 is alkyl of 4 to 20 carbon atoms; (D) a piperidine compound having at least one 2,2,6,6-tetramethylpiperidine ring in a molecule; and (E) an epoxy compound of bisphenol A type glycidyl ether. The composition thus blended exhibits excellent stability against thermal oxidation.