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Abstract

The present invention is a hydrogenated block copolymer [D] obtained by hydrogenating a block copolymer [C] that comprises two or more polymer blocks [A] and one or more polymer blocks [B], the block [A] comprising a monomer unit derived from an aromatic vinyl compound, and the block [B] comprising a monomer unit derived from a linear conjugated diene compound, the copolymer [D] having a low-temperature-side tan δ peak temperature of −20 to 20° C. and a high-temperature-side tan δ peak temperature of 100° C. or more with respect to dynamic viscoelastic properties, the copolymer [D] being obtained by hydrogenating 90% or more of all unsaturated C—C bonds of the copolymer [C] that is characterized in that a ratio (wA:wB) of a total weight fraction wA of the block [A] in the copolymer [C] to a total weight fraction wB of the block [B] in the copolymer [C] is 15:85 to 40:60, and a ratio of structural units derived from 1,2-addition and 3,4-addition polymerization with respect to a total amount of structural units derived from the linear conjugated diene compound included in the block [B] is 40 wt % or more, and the copolymer [D] having Mw 40,000 to 200,000.

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First Claim