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US 2026/0217437 A1Published application
Gas barrier film, laminate, packaging bag, and package
AssigneeToppan Holdings Inc.
InventorsRyo TAKEI, Yuki KAMEGAWA
Life of this patent
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Abstract
A gas barrier film includes a substrate containing polyethylene; and a barrier layer formed on one surface of the substrate, the barrier layer including at least one of an inorganic layer and a gas barrier coat. In an X-ray diffraction pattern measured by a parallel beam method of X-ray diffraction for the substrate, a degree of crystallinity, which is a ratio of a crystalline peak area to a total peak area in a diffraction angle range of 10° to 30°, is 35.0% or less, and a ratio of a crystalline peak area of the (200) plane of polyethylene to a total peak area is 2.0% or greater.
Claims18
A gas barrier film comprising:
- a substrate containing polyethylene;
- and
- a barrier layer formed on one surface of the substrate, the barrier layer including at least one of an inorganic layer and a gas barrier coat, wherein
- in an X-ray diffraction pattern measured by a parallel beam method of X-ray diffraction for the substrate, a degree of crystallinity, which is a ratio of a crystalline peak area to a total peak area in a diffraction angle range of 10° to 30°, is 35.0% or less, and a ratio of a crystalline peak area of the (200) plane of polyethylene to a total peak area is 2.0% or greater.
1 more element
Dependencies are inferred from the claim text.