Patent attributes
The resin composition includes a block copolymer including a vinyl aromatic hydrocarbon-derived structural unit and a conjugated diene-derived structural unit, the resin composition satisfying the following (1) to (3): (1) an area ratio of components having a molecular weight in terms of polystyrene of equal to or more than 400,000 with respect to all components is equal to or more than 8% and equal to or less than 50%; (2) at least one main peak of a loss tangent value (tan δ) measured under a condition of a frequency of 1 Hz at a temperature rising rate of 4° C./min in accordance with ISO 6721-1 is present in a range of equal to or more than 70° C. and equal to or less than 100° C.; and (3) a strain hardening degree (λ max) of a compression-molded specimen prepared in accordance with ISO 293 is equal to or more than 2.0.
