| 摘要 |
Mo3535 MD-90-28-PU POLYUREA RIM SYSTEMS The present invention is directed to a RIM process and an isocyanate reactive composition for use therein. The isocyanate composition includes an amine terminated chain extender and an aromatic amine terminated polyether of the formula: wherein R is an n-valent group obtained by the removal of hydroxyl groups from an n-hydroxy group containing polyhydroxyl compound having a molecular weight of from about 300 to about 12,000, R1 represents hydrogen or an inert substituent, R2 represents hydrogen, an amine group, or an inert substituent, and n represents an integer from 2 to 4. Mo3535
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