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Title:
GAS BARRIER STRETCH SHRINK FILM
Document Type and Number:
Japanese Patent JP2023112582
Kind Code:
A
Abstract:
To provide a multilayer shrink film having a long freshness holding period, having tear strength when packaged, and having excellent airtightness.SOLUTION: A multilayer shrink film of the present invention includes a skin layer, an adhesion layer, a gas barrier layer, an adhesion layer, and a skin layer in this order in the thickness direction. The skin layer is an outermost layer. The skin layer contains 80 wt.% or more of a thermoplastic resin based on 100 mass% of the skin layer. A Vicat softening point (SVst) and a melting point (STm) of the thermoplastic resin and a glass transition point (GTg) of resin contained in the gas barrier layer satisfy a relational expression (1) below. The film surface has an adhesive force of more than or equal to 90 gf. GTg(°C)

Inventors:
OKAMURA AYA
Application Number:
JP2022014464A
Publication Date:
August 14, 2023
Filing Date:
February 01, 2022
Export Citation:
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Assignee:
ASAHI KASEI CORP
International Classes:
B32B27/00; B29C61/06; B32B7/022; B32B7/12; C08J5/18
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kengo Yoshida
Takao Inoue



 
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