Mitsubishi Gas Chemical Company, Inc.

Keisuke Ito

Nobuhiko Matsumoto

To provide a liner which contains a polyamide resin, wherein the polyamide resin contains a diamine-derived structural unit and a dicarboxylic acid-derived structural unit; 50 mol % or more of the diamine-derived structural unit is derived from a xylylenediamine; a content of a toughness improver in a region up to 30% in a thickness direction from one surface of the liner is from 5 to 20 mass %; and a content of the toughness improver in a region up to 30% in a thickness direction from the other surface of the liner is 0.5 mass % or less.

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Hiratsuka, Japan

Keisuke Ito