| 摘要 |
<p>PURPOSE:To produce PET container excellent in gas barrier property, by blow molding a PET parison with a polyvinylidene chloride applied thereon followed by heating so as to set the PET thermally and at the same time to crystallize the polyvinylidene chloride. CONSTITUTION:After a polyvinylidene chloride is applied to the inside or outside of a PET (polyethylene terephthalate) parison, the parison is biaxially stretched and blow molded, the PET is thermally set at the temperature up to the thermal decomposition temperature of the polyvinylidene chloride and at the same time the polyvinylidene chloride is crystallized. As a polyvinylidene chloride is laminated, the obtained item is excellent in gas barrier property. The item is useful as a container for soy sauce, sake, etc.</p> |
