| abstract |
A multilayered container comprises a polyester layer that contains a thermoplastic polyester resin (X) and a polyamide layer that contains a polyamide resin (Y), wherein the polyester layer is an innermost layer and the polyamide layer is an intermediate layer. The polyamide resin (Y) has a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit, and at least 70 mol% of the diamine-derived constituent unit is a constituent unit derived from xylylenediamine and at least 70 mol% of the dicarboxylic acid-derived constituent unit is a constituent unit derived from α,ω-straight-chain aliphatic dicarboxylic acid having 4 to 20 carbons. Using 100% for an overall thickness, the polyamide layer is present from a position that is 5% to 35% from the inner surface, and the polyamide layer thickness is 1 to 15%. |