| 摘要 |
PROBLEM TO BE SOLVED: To provide a reactive hot-melt adhesive having excellent initial adhesiveness and giving satisfactory hardness (softness) after curing.SOLUTION: This reactive hot-melt adhesive is obtained by reacting a polyether polyol (A), an amorphous polyester polyol (B) having a softening temperature of <40°C, an amorphous polyester polyol (C) having a softening temperature of ≥40°C, and a polyisocyanate compound (D) to give the equivalent ratio of the isocyanate group (isocyanate/hydroxy) of 1.05 to 3.0. |
