| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyurea elastic rigid foam having excellent abrasion resistance, heat resistance and static and dynamic performance, usable for wet and dry polishing and imparting an impact absorbing material and a vibration absorbing material, and a method of producing the same. SOLUTION: This tough polyurea elastic rigid foam is obtained by foaming and hardening a mixture including a main material comprising a polyisocyanate and a hardening agent including aromatic diamines, a foaming agent, a foam stabilizer and a hardening catalyst. As the aromatic diamines, a mixture of an aromatic diamine oligomer and an aromatic diamine compound is used. |
