| 摘要 |
<p>RIM FASCIA SYSTEM EMPLOYING CRUDE DIPHENYLMETHANE DIISOCYANATE A RIM polyurethane elastomer prepared by reacting an organic polyisocyanate, a polyoxyalkylene polyether polyol, and a chain extender in the presence of an effective amount of aniline. Improvements in tensile and tear strength are realized.</p> |
