| 摘要 |
<p>PURPOSE:To improve tensile strength by eliminating generation of voids, by varying extruding terms, in a method through which base resin superior in forming a rough surface and a filling particulate whose melting point is higher than that of the base resin are mixed and made into a tape by extrusion molding. CONSTITUTION:A filling particulate 3 whose melting point is higher than that of base resin 2 is mixed with said base resin 2 of a plastic tape 1 and extrusion molding of said mixture is made by an extrusion temperature exceeding the melting point of said filling particulate, through which the mixture is made into the tape. As for the filling particulate, a polypropylene particulate is mixed when polyethylene is the base resin and a poly-4-methylpentane (TPX) particulate is appropriate when the base resin is the polypropylene. As for the extrusion temperature, it is good to set up at a higher temperature side by about 5-30 deg.C from a melting point temperature.</p> |
