| abstract |
(B2) derived from a conjugated diene other than parnesene is contained in an amount of 1 to 100% by mass, the polymer block (a) comprising a structural unit derived from an aromatic vinyl compound and the structural unit (b1) (A) / (b)] of the polymer block (a) and the polymer block (b) is 5/95 to 45/55, The sealant excellent in molding processability, flexibility and adhesive property is excellent in sound insulation and vibration damping property (vibration damping property) in a high frequency region near 4,000 hertz even at a high temperature. |