| 摘要 |
<p>METHOD FOR PRODUCING FIBER-REINFORCED POLYMER FOAM Flexible or rigid polymer foam reinforced with fibers such as glass fibers or synthetic fibers is produced by supplying at least one fibrous layer downwardly, supplying facing members downwardly adjacent the layer from the opposite sides thereof at a certain angle, feeding a foamable resinous liquid, for example, two-component type polyurethane, polyisocyanurate or polyoxazolidone foam-forming liquid to the opposite surfaces of the layer, passing the layer and the facing members through a gap which is narrower than the thickness of the layer to compress the layer and to enable the foamable liquid to penetrate into the layer, and allowing the foamable liquid to foam under restricted or unrestricted conditions. Foam in which fibers are uniformly distributed has improved physical and chemical properties, such as cushioning properties, strength, compressive strain and flame-resistance.</p> |
