GAS-BARRIER FILM AND PROCESS FOR PRODUCING THE SAME

Provided is a gas barrier film including a layer of a resin composition (C) on at least one side of a substrate (D), wherein the resin composition (C) contains a water soluble or water dispersible polymer (A) and a swellable inorganic layered silicate (B), where the swellable inorganic layered silic...

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Bibliographische Detailangaben
Hauptverfasser: KAZETO, OSAMU, NANBA, MICHIYUKI, OHTA, SHUN-ICHI, ITOH, TAKAFUMI
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Provided is a gas barrier film including a layer of a resin composition (C) on at least one side of a substrate (D), wherein the resin composition (C) contains a water soluble or water dispersible polymer (A) and a swellable inorganic layered silicate (B), where the swellable inorganic layered silicate (B) satisfying expressions (1) and (2) below is used. 11.0 ‰¥ D ‰¥ 2.0 µm (1), à ‰¥ 1.8 µm (2), wherein D and à are a logarithmic average particle diameter of the swellable inorganic layered silicate (B) measured by laser diffraction and standard deviation of a particle size distribution thereof, respectively. This provides a gas barrier film including a resin composition layer, with a swellable inorganic layered silicate dispersed therein, having an extremely excellent gas barrier property and a method of producing a multilayer barrier film having the resin composition layer with extremely less irregularities on a surface thereof.