Sperrfolie, Laminat und Verpackungsbeutel

Details

Veröffentlichungs-Nr.

EP4778723

Anmeldetag

30. Juni 2025

Veröffentlichung

29. Januar 2026

Rechtsraum

EP

Abstract

A barrier film of the present disclosure includes a vapor-deposited film 15 on a first resin layer 11 side of a polymer film 10. The polymer film 10 includes a first resin layer 11, a second resin layer 12, and a third resin layer 13 in this order, the first resin layer 11 constitutes one outermost layer of the polymer film 10, the first resin layer 11 contains a polyamide resin, the polyamide resin contains an aromatic polyamide, a ratio of the number of dicarboxylic acid units contained in the aromatic polyamide to a total number of aminocarboxylic acid units and dicarboxylic acid units contained in the polyamide resin constituting the first resin layer 11 is greater than 65% by mole, a ratio of the number of isophthalic acid units contained in the aromatic polyamide to the total number of the aminocarboxylic acid units and the dicarboxylic acid units contained in the polyamide resin constituting the first resin layer 11 is 30% by mole or greater, the second resin layer 12 contains an acid-modified product of polypropylene, the third resin layer 13 contains homopolypropylene, and the vapor-deposited film 15 contains an inorganic oxide.

Anmelder

Firma

Dai Nippon Printing Co., Ltd.

Land

🇯🇵 Japan