| abstract |
A biaxially stretched hollow container comprising a polyester resin composition having excellent gas barrier properties and improved transparency is provided. A copolymer polyester resin (A) having a sulfonic acid metal base and mainly comprising an aromatic dicarboxylic acid unit and an aliphatic diol unit, a diamine unit containing at least 70 mol% of a metaxylylenediamine unit, carbon A biaxially stretched hollow container obtained by molding a polyester resin composition (C) comprising a polyamide resin (B) comprising a dicarboxylic acid unit containing 70 mol% or more of α, ω-linear aliphatic dicarboxylic acid units of several 4 to 20. [Selection figure] None |