MULTILAYERED CONTAINER AND METHOD FOR PRODUCING SAME

A multilayer container having a polyester layer comprising a thermoplastic polyester resin (X) and a polyamide layer comprising a polyamide resin (Y), wherein the polyester layer is an innermost layer and the polyamide layer is an interlayer, and the polyamide resin (Y) comprises a polyamide resin (...

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1. Verfasser: MIYABE, Takanori
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A multilayer container having a polyester layer comprising a thermoplastic polyester resin (X) and a polyamide layer comprising a polyamide resin (Y), wherein the polyester layer is an innermost layer and the polyamide layer is an interlayer, and the polyamide resin (Y) comprises a polyamide resin (Y-1) comprising a structural unit derived from a diamine and a structural unit derived from a dicarboxylic acid, 70 mol% or more of the structural unit derived from a diamine being a structural unit derived from xylylenediamine; and 70 mol% or more of the structural unit derived from a dicarboxylic acid being a structural unit derived from an α,ω-linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms, and wherein a stretching ratio in a transverse direction (TD) is 2.2 times or more, and a stretching ratio in a machine direction (MD) to the stretching ratio in the transverse direction (TD) (MD/TD) is 0.6 or more and less than 1.0.