| 摘要 |
Process for preparing a flexible foam by reacting an isocyanate-terminated prepolymer having an NCO value of 5-18 percent by weight, a polyisocyanate having an NCO value of at least 25 percent by weight, 20-95 parts by weight, per 100 parts by weight of polyisocyanate, of an isocyanate-reactive compound of molecular weight of 1000-12000, and water. |
