| abstract |
Disclosed is a polyurethane hot-melt adhesive including: a thermoplastic polyurethane that is a reactant of a raw material including a polymer polyol, a polyisocyanate, and a chain extender, wherein X-Y ≥ 15, where X represents a temperature (°C) at which the polyurethane hot-melt adhesive has a melt viscosity of 2.0 × 10 3 Pa·s, and Y represents a temperature at which the polyurethane hot-melt adhesive has a melt viscosity of 1.0 × 10 5 Pa·s, and the polyurethane hot-melt adhesive has a 100% modulus of 2.5 MPa or more. |