| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multilayer bottle hardly allowing inter-layer separation due to a fall or a shock, not required to avoid a rugged section or curved section in order to prevent the inter-layer separation, and having a large degree of freedom in design. <P>SOLUTION: The multilayer bottle includes an outermost layer, an innermost layer, and at least one barrier layer between the outermost and innermost layers. The outermost and innermost layers are each formed of a thermoplastic polyester resin obtained by polymerization of a terephthalic acid and ethylene glycol as main ingredients, and the barrier layer has an oxygen permeability, a thickness, and a degree of orientation falling in specific ranges. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
