| 摘要 |
A method of making reaction injection molded polyurethane articles comprises injecting into a mould a high molecular weight polyol, a low molecular weight active hydrogen containing compound having a functionality of at least two, and an aromatic polyisocyanate, the moulded product being post cured by subjecting it to an ambient temperature of from 290-425 DEG F (143 to 219 DEG C). |
