| abstract |
A block copolymer hydrogenate, which is a hydrogenate of a block copolymer having a polymer block (A) containing a structural unit derived from an aromatic vinyl compound in an amount of more than 70 mol%, and a polymer block (B) containing a structural unit derived from a conjugated diene compound in an amount of 30 mol% or more, and further satisfies the following requirements: Requirement (1): The content of the polymer block (A) in the block copolymer hydrogenate is 1 to 30% by mass. Requirement (2): The conjugated diene compound contains isoprene. Requirement (3): A total content of the 1,2-bond unit and the 3,4-bond unit in the structural units derived from the conjugated diene compound is 60 mol% or more. Requirement (4): The hydrogenation rate of the polymer block (B) is 60 mol% or more. Requirement (5): The block copolymer hydrogenate has a serial temperature range where tanδ, as measured according to JIS K7244-10(2005) and under the conditions of a strain of 0.1%, a frequency of 1 Hz, a measurement temperature of -70 to 100°C and a rate of temperature increase of 3°C/min, is 1.0 or more, and the maximum width of the temperature range is 16°C or more. |