LAMINATE FILM, PACKAGING MATERIAL, AND PACKAGING BODY
The laminated film (10) of the present invention is a laminated film including at least a substrate layer (A) and an ionomer resin layer (B) provided on one surface of the substrate layer (A), the ionomer resin layer (B) including an ionomer of ethylene-unsaturated carboxylic acid-based copolymer (B...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The laminated film (10) of the present invention is a laminated film including at least a substrate layer (A) and an ionomer resin layer (B) provided on one surface of the substrate layer (A), the ionomer resin layer (B) including an ionomer of ethylene-unsaturated carboxylic acid-based copolymer (B1). When a content of unsaturated carboxylic acid in the ethylene-unsaturated carboxylic acid-based copolymer (B2) constituting the ionomer of ethylene-unsaturated carboxylic acid-based copolymer (B1) is designated as X [mass%], and a degree of neutralization of the ionomer of ethylene-unsaturated carboxylic acid-based copolymer (B1) is designated as Y [mol%], a metal ion content represented by the formula: X × Y / 100 is more than 5.0 and less than or equal to 20.0. |
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