| 摘要 |
PURPOSE:A composition free from occurrence of silver and reduction in gloss, obtained by adding a small amount of a specific phenolic antioxidant to granules prepared from a conjugated diene hydrocarbon/vinyl aromatic compound block copolymer and a small amount of a phenolic antioxidant. CONSTITUTION:100pts.wt. granules containing 100pts.wt. block copolymer consisting of a conjugated diene hydrocarbon and a vinyl aromatic compound, having >=0.5g/10min melt flow index, or thermoplastic resin composition containing at least one of the block copolymer, and >=0.05pts.wt. phenolic antioxidant is blended with 0.08-0.7, preferably 0.1-0.5pts.wt. phenolic antioxidant having <=250mu particle diameter. Butylated hydroxytoluene is preferable as the phenolic antioxidant. A block copolymer having <=75wt% conjugated diene hydrocarbon content and >=0.5g/10min flow melt index (JIS-K-6871) is used as the block copolymer.
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