| 摘要 |
<p>A composite structure includes a first layer, comprising a styrenated polyester, and a second layer. The first layer is a show surface of the composite structure. The second layer includes a filler and the reaction product of a resin component and an isocyanate component. The resin component includes a an isocyanate-reactive component and a supplemental cross-linking agent. The supplemental cross- linking agent is present in an amount of at least 10 parts by weight based on the total weight of the resin component for lowering a viscosity of the resin component and for controlling the reaction rate and reaction temperature of the second layer.</p> |
