| 摘要 |
<p>A process for molding in situ a polystyrene foam structure with a relatively rigid thermoplastic sheet covering a portion of the surface of the polystyrene foam. The thermoplastic sheet is cut and folded into proper shape and a heatactivated adhesive applied to the inside surface. The folded sheet is inserted into the female cavity of a mold which is then closed. Expandable polystyrene is injected into the interior of the folded sheet and heated to expand the polystyrene against the sheet and the adhesive is heat-activated to bond the sheet and polystyrene.</p> |
