Patent ID: 7985484

Claim:
A block copolymer hydrogenation product having a weight ratio of a vinyl aromatic hydrocarbon and a conjugated diene of 65/35 to 90/10, a number average molecular weight measured by gel permeation chromatography (GPC) of 30,000 to 500,000 and a hydrogenation rate of 45% or more, wherein the vinyl aromatic hydrocarbon incorporated into said hydrogenation product has a block rate of 75 to 98% by weight, wherein relative to the weight of the total vinyl aromatic hydrocarbon polymer blocks, the ratio of vinyl aromatic hydrocarbon polymer blocks having a molecular weight of 50,000 or less is 85% by weight or more and the ratio of vinyl aromatic hydrocarbon polymer blocks having a molecular weight of 15,000 or less is from 10 to 60% by weight, and wherein at least one peak temperature of function tan δ in a dynamic viscoelasticity measurement of said hydrogenation product is present within the range of exceeding −70° C. to −15° C. and at least one vinyl aromatic hydrocarbon polymer block having a peak molecular weight within the molecular weight range of 5,000 to 30,000 is incorporated.