| 摘要 |
PROBLEM TO BE SOLVED: To provide a moisture-curing polyurethane hot-melt adhesive which attains both proper open time and moisture permeability at low temperature.SOLUTION: The moisture-curing polyurethane hot-melt adhesive contains a urethane prepolymer obtained by reacting a polyol (A) containing an alicyclic structure-containing polyol (A-1) and a crystalline polyester polyol (A-2) having a melting point of 60-80°C with a polyisocyanate (B). The alicyclic structure-containing polyol (A-1) is obtained by reacting an alicyclic structure-containing polybasic acid (a-1-1) with glycol (a-1-2). |
