Sperrfolie, Laminat und Verpackungsbeutel

Details

Veröffentlichungs-Nr.

EP4821681

Anmeldetag

30. Juni 2025

Veröffentlichung

29. Januar 2026

Rechtsraum

EP

Abstract

The barrier film of the present disclosure includes a vapor deposition film 15 on a side of a first resin layer 11 of a polymer film 10, wherein the polymer film 10 includes the 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 an aromatic polyamide as a polyamide resin, the ratio of the number of diamine units contained in the aromatic polyamide to the total number of aminocarboxylic acid units and diamine units contained in the polyamide resin constituting the first resin layer 11 is 85 mol% or more, the ratio of the number of aromatic diamine units contained in the aromatic polyamide to the total number of aminocarboxylic acid units and diamine units contained in the polyamide resin constituting the first resin layer 11 is 15 mol% or more and 70 mol% or less, the content of an amorphous aromatic polyamide in the first resin layer 11 is 25 mass% or more, the second resin layer 12 includes an acid-modified product of polypropylene, the third resin layer 13 includes homopolypropylene, and the vapor deposition film 15 includes an inorganic oxide.

Anmelder

Firma

Dai Nippon Printing Co., Ltd.

Land

🇯🇵 Japan