Title:
LAMINATED FILM HAVING GAS BARRIER PROPERTIES
Document Type and Number:
Japanese Patent JP2003053884
Kind Code:
A
Abstract:
To provide a laminated film having gas barrier properties which maintains high gas barrier properties even after it is bent repeatedly, without impairing the inherent mechanical properties that a resin film used as a base has in itself.
A nylon resin film 1a is made to adsorb a substance constituted of turmeric, and the density of a layer 1b formed by the adsorption is made larger in the range of 0.1-1.0 g/cm3 than that of the nylon resin film 1a before the adsorption. At least on one side of a base film 1 thus constituted, an evaporated thin film layer 2 constituted of a metal aluminum, an aluminum oxide or a silicon oxide is laminated.
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Inventors:
SHIOZAKI KOICHI
Application Number:
JP2001250267A
Publication Date:
February 26, 2003
Filing Date:
August 21, 2001
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B32B9/00; B32B15/08; B32B15/088; (IPC1-7): B32B9/00; B32B15/08
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