| 摘要 |
Provided is an adhesive tape which has unevenness followability capable of sufficiently filling unevenness of an adherend and can hold a state in which unevenness is sufficiently filled over time. The adhesive tape includes an adhesive agent layer and a substrate layer, and the adhesive agent layer has a storage elasticity modulus at 20°C of 0.5 × 106 Pa to 1.0 × 108 Pa and a loss tangent tan d at 20°C to 80°C of 0.1 or more. In a preferred embodiment, the adhesive agent layer contains an amorphous propylene-(1-butene) copolymer obtained by polymerization using a metallocene catalyst, and the propylene-(1-butene) copolymer has a weight average molecular weight (Mw) of 200,000 or more and a molecular weight distribution (Mw/Mn) of 2 or less. |
