| 摘要 |
<p>A reinforced reaction injection molding of polyurethanes is prepared by reacting an organic polyisocyanate a polyoxyalkylene polyether polyol, a chain extending agent, a catalyst, optionally a blowing agent and glass fibers. The glass fibers form a stabilized dispersion in the polyol by employing as a suspending agent the reaction product of a polyamine and a polyester.</p> |
