| 摘要 |
PROBLEM TO BE SOLVED: To provide a hotmelt adhesive composition exhibiting sufficient adhesive properties in application for sticking a wave-shaped plate-like body made of a polypropylene with paper to form a heat-exchanging element, and free from a thermoplastic polymer having possibility of staining the paper.SOLUTION: There is provided a hotmelt adhesive composition comprising a reactive urethane prepolymer obtained by reacting a non-crystalline polyester polyol, a crystalline polyester polyol, a polyester polyol liquid at 23°C, a polyether polyol and a polybutadiene polyol, with an isocyanate compound. |
