| 摘要 |
<p>PROBLEM TO BE SOLVED: To mold a safe side ditch cover excellent in workability, strength and weatherability only from a regenerated raw material formed by recovering a used PET product and a used resin product other tan PET. SOLUTION: PET ground pieces 14 obtained by grinding the used PET product 12 and resin ground pieces 18 obtained by grinding a used resin product 16 molded from a plastic resin other than PET are mixed in a ratio of about (6:4) and dried to prepare the regenerated raw material 22 which is, in turn, charged in an injection molding machine 24 and injected in the retaining mold 38 for the side ditch cover arranged to the injection molding machine 24 at a molding temperature of 280-285 deg. to mold the side ditch cover 40.</p> |
