Patent ID: 9090780
Filing Date: 2015-07-28
Classification: B32B,C09D,C23C,Y10T

Abstract:
1. Gas barrier film comprising a polymer base film laminated, on at least one of the surfaces thereof, with a gas barrier layer, the gas barrier layer having a layer structure in which a layer [A], a layer [B], and a layer [C], in contact with each other, are stacked in this order on the polymer base film, the layer [A] and the layer [C] each having a density in the range of 2.0 to 9.0 g/cm 3 , and the layer [B] having a density that is in the range of 2.3 to 10.5 g/cm 3 and higher than the densities of the layer [A] and layer [C] and having a thickness of 0.2 to 20 nm, wherein the layer [A] and the layer [B] contain a zinc (Zn) compound as the primary component while the layer [C] contains, as the primary component, a compound containing at least one element selected from the group consisting of silicon (Si), aluminum (Al), titanium (Ti), zirconium (Zr), and chromium (Cr), the density of the layer [B] being higher by 0.1 to 2.0 g/cm 3 than the density of the layer [A].