| 摘要 |
Rigid closed-cell polyurea elastomer foam is obtained by reacting an (A) component which includes an isocyanate with a (B) component which includes (1) an amine, (2) a chain extender, (3) a blowing agent and (4) a surfactant employed as a foam stabilizer. According to the inventor, the primary amine (1) is a primary aliphatic amine terminated polyoxyalkylene polyol, and water is employed as the sole blowing agent (2). |
