| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer structural body which at least partially has a multilayer structure containing an inner layer, an outer layer and a barrier layer, and can prevent delamination at a higher level.SOLUTION: There is provided a multilayer structural body at least partially having a multilayer structure containing an inner layer, an outer layer and at least one barrier layer positioned between the inner layer and the outer layer, where the inner layer and the outer layer are each independently formed of a resin composition (C) containing 94-99.9 mass% of polyester (A) containing a dicarboxylic acid unit containing 80 mol% or more of a terephthalic acid unit and a diol unit containing 80 mol% or more of an ethylene glycol unit and 0.1-6 mass% of polyamide (B) containing a diamine unit containing 70 mol% or more of a m-xylylenediamine unit and a dicarboxylic acid unit, and the barrier layer is formed of a resin composition (D) containing 1-97 mass% of the polyester (A), 2-98 mass% of the polyamide (B), and a transition metal compound.SELECTED DRAWING: Figure 1 |
