| 摘要 |
A hydrogenated block copolymer which is made up of at least two polymer blocks A consisting mainly of vinylaromatic hydrocarbon compound units and at least two polymer blocks B consisting mainly of hydrogenated butadiene units and in which the polymer blocks B each has a degree of hydrogenation of 90 % or higher, wherein at least one of the terminal blocks is a polymer block B, all the terminal polymer blocks B account for 0.1 to 9.1 wt%, excluding 9.1 wt.%, of the whole copolymer, the vinylaromatic hydrocarbon compound units account for 25 to 80 wt.%, excluding 80 wt%, of the whole copolymer, and the polymer blocks B before hydrogenation had a 1,2-bond content of 60 to 99 mol%, excluding 99 mol%, on the average. A resin composition is also provided which comprises the copolymer and either a polypropylene resin/a polyphenylene ether resin or a polystyrene resin.
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