| 摘要 |
PROBLEM TO BE SOLVED: To provide a PEN-based hollow molded body, which has no fear for polluting contents, keep a favorable transparency even by repeated use through recovery and recycling and the recycling of which can be executed under a state having no substantial flaw in the surface thereof. SOLUTION: On the outer surface of this polyester hollow molding body, a polyester coating layer, which can remove not by the water having 35 deg.C or lower but by the hot water of 60 to 100 deg.C or an alkaline aqueous solution having a pH of 10 or more, is equipped. |
