Mehrschichtfolie für Vakuumwärmeisolator, Dampfabgeschiedene Mehrschichtfolie für Vakuumwärmeisolator, Mehrschichtfolie für Vakuumwärmeisolator, Vakuumverpackungsbeutel und Vakuumwärmeisolator

Details

Veröffentlichungs-Nr.

EP4733065

Anmeldetag

21. Juni 2024

Veröffentlichung

26. Dezember 2024

Rechtsraum

EP

IPC

B32B27/28, B65D65/40

Abstract

Provided is a multilayer film for a vacuum heat insulation material, the multilayer film comprising an ethylene-vinyl alcohol copolymer layer (A), an adhesion layer (B), and a thermoplastic resin layer (C) in this order, wherein the ethylene-vinyl alcohol copolymer layer (A) contains an ethylene-vinyl alcohol copolymer (a) having an ethylene unit content of 20 mol% or more and 30 mol% or less as a main component, the adhesion layer (B) contains an adhesive resin (b) as a main component, the thermoplastic resin layer (C) contains a polyethylene (c) as a main component, and the multilayer film has been stretched at least monoaxially by 3 times or more and 12 times or less. The multilayer film enables reduction in defect rates in manufacturing vacuum heat insulation materials and defect rates after bending vacuum heat insulation materials.

Anmelder

Firma

Kuraray Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete