Title:
GAS BARRIER LAMINATED FILM OR SHEET
Document Type and Number:
Japanese Patent JP3307230
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a gas barrier laminated film suitably usable for heat sealing without impairing excellent gas barrier properties even after boiling by providing excellent strength characteristics and the gas barrier properties.
SOLUTION: In the gas barrier laminated film comprising a gas barrier layer made of an inorganic deposited layer and formed on one or both side surface sides of a base layer formed of a polyamide film and a heat sealing layer, shrink stresses of all directions at 170°C of the polyamide film for constituting the base layer are all 950gf/mm2 or less, and shrinkage factors of all the directions when it is heat treated at 170°C for 10min are all 4.0% or less. Thus, the laminated film or sheet exhibiting excellent gas barrier properties even after boiling can be obtained.
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Inventors:
Seiichiro Yokoyama
Shigeru Yoneda
Kiyoshi Iseki
Shinji Fujita
Yozo Yamada
Shigeru Yoneda
Kiyoshi Iseki
Shinji Fujita
Yozo Yamada
Application Number:
JP17690696A
Publication Date:
July 24, 2002
Filing Date:
July 05, 1996
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA
International Classes:
B65D71/08; B32B7/02; B32B9/00; B32B27/34; (IPC1-7): B32B9/00; B32B7/02; B32B27/34
Domestic Patent References:
| JP1267036A | ||||
| JP7290565A |
Attorney, Agent or Firm:
Etsushi Kotani (2 outside)