GAS BARRIER THERMOPLASTIC POLYESTER-BASED RESIN LAMINATED BODY, PREFORM FOR STRETCH BLOW MOLDING FORMED FROM THE SAME, AND PACKAGING CONTAINER FORMED BY MOLDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a gas barrier thermoplastic polyester-based resin laminated body capable of preventing interlayer peeling and suppressing opacification, a preform for stretch blow molding having the polyester-based resin laminated body, and a packaging container formed by molding the preform for stretch blow molding.

SOLUTION: The preform for stretch blow molding is molded having a gas barrier thermoplastic polyester-based resin composition (P) including: a first thermoplastic polyester resin (A) of 10-90 pts.wt. containing a diol component having a straight-chain hydrocarbon and a dicarboxylic acid; a second thermoplastic polyester resin (B) of 8-85 pts.wt. containing a diol component having an alicyclic hydrocarbon and a dicarboxylic acid; and an aromatic polyamide resin (C) of 0.1-43 pts.wt., and a portion laminating a thermoplastic polyester-based resin (Q) on at least one surface side of the resin composition (P). Further, the packaging container is formed by the stretch blow molding of the preform.

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