| 摘要 |
An object of the present invention is to provide a polypropylene composition which is excellent in any performance of mechanical property, stability to thermal oxidation, and coloration resistance of the resulting molded article. There is provided a polypropylene composition comprising 0.001 to 0.5 part by weight of at least one kind neutralizing agent selected from the group consisting of hydrotalcites, metal hydroxide and a carboxylic acid metal salt, 0.01 to 0.5 part by weight of a phenol-based antioxidant represented by the formula (1), 0.01 to 0.5 part by weight of a sulfur-based antioxidant represented by the formula (2), 0.01 to 0.5 part by weight of at least one kind phosphorus-based antioxidant selected from the group consisting of a compound represented by the formula (3) and a compound represented by the formula (4), 0.01 to 0.8 part by weight of a metal silicate salt, and 100 parts by weight of polypropylene, provided that, when a bisphenol A type glycidyl ether-based epoxide compound represented by the formula (5) and/or carboxylic acid amide having a carbon number of 8 to 50 are (is) contained in the composition, a content of the bisphenol A type glycidyl ether-based epoxide compound represented by the formula (5) is 0.001 part by weight or less, and a content of the carboxylic acid amide having a carbon number of 8 to 50 is 0.001 part by weight or less.
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