| 摘要 |
<p>An isocyanate modified amine catalyst is prepared by intimately mixing under reaction conditions a reactive tertiary amine, a polyol, and a organic isocyanate compound. This isocyanate modified amine catalyst is useful for the preparation of polyurethane materials such as foams, with densities ranging between 15 and 500 kg/m3, molded or free rise, flexible, semi-flexible or rigid, integral ski, or microcellular foams, elastomers or coatings.</p> |
