| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a container formed by stretch draw molding, which is excellent in appearance characteristics such as transparency, excellent in stretching moldability and excellent in the stretch balance such as uniformities of wall thickness and shape. <P>SOLUTION: The container by stretch draw molding is formed from a resin composition containing an ethylene terephthalate based polyester resin and dry-type hydrophobic silica particles whose surfaces are covered by a hydrophobic organic functional group. Regarding the container, the valueδT(°C) represented by the formula:δT(°C)=TC1(2nd)-TC1(1st) is >0 and≤14. In the formula, TC1(1st) indicates the exothermic peak temperature of crystallization of the unstretched part of the container, measured by a differential scanning calorimeter (DSC), and TC1(2nd) the exothermic peak temperature of crystallization measured by a DSC after the unstretched part of the container is molten and cooled rapidly. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
