Laminate, gas barrier film, and manufacturing method therefor
AssigneeToppan Printing Co., Ltd.
InventorsJin Sato, Mitsuru Kano
Life of this patent
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Abstract
A laminate (1) provided with: a substrate (2); an undercoat layer (3), which is formed on at least a portion of the outer surface of the substrate (2), contains an organic polymer with a functional group, and is formed in a membrane form or film form; and an atomic layer deposition film (4), which contains a precursor (6) that serves as a starting material, is formed so as to cover the surface of the undercoat layer (3), and in which at least some of the precursor (6) are bonded to the functional groups. The linear expansion coefficient of a layered film provided with the substrate (2) and the undercoat layer (3) is from about 1.0×10−5/K to about 8.0×10−5/K.
Claims11
A laminate, comprising:
- a base material;
- an undercoat layer that is formed on at least a portion of an outer surface of the base material, the undercoat layer containing an organic polymer having functional groups, the undercoat layer being formed into a membrane shape or a film shape;
- and
- an atomic layer deposition film that contains a precursor that serves as a starting material, the atomic layer deposition film being formed so as to cover a surface of the undercoat layer, at least some of the precursor bonding with the functional groups in the organic polymer,
- wherein a linear expansion coefficient of a layered film including the base material and the undercoat layer is from about 1.0×10−5/K or higher and about 8.0×10−5/K or lower,
- wherein the precursor that is bonded with the functional groups of the organic polymer is a first precursor,
- wherein the first precursor is bonded to a second precursor adjacent to the first precursor such that the first precursor and the second precursor are cross-linked with each other,
- wherein the atomic layer deposition film comprises a two-dimensional film grown in a planar direction of the undercoat layer, the atoms of the two-dimensional film being bonded in the planar direction,
- wherein a main component of the undercoat layer is the organic polymer, and
- wherein the undercoat layer comprises an inorganic substance, an organic polymer, and a binder, and is formed so that at least some of the first precursor bonds with the binder and the inorganic substance.
A method for manufacturing a laminate wherein:
- a base material is placed;
- an undercoat layer is formed on at least a portion of an outer surface of the base material, a linear expansion coefficient of a layered film including the base material and the undercoat layer is from about 1.0×10−5/K or higher and about 8.0×10−5/K or lower, the undercoat layer containing an organic polymer having functional groups, the undercoat layer having a membrane shape or a film shape;
- surface treatment is performed on at least a portion of a first surface in a thickness direction of the undercoat layer that is in contact with the base material and a second surface provided opposite of the first surface;
- and
- an atomic layer deposition film is formed on the second surface of the undercoat layer to cover the second surface, so that a precursor that is a starting material of the atomic layer deposition film bonds with functional groups of the organic polymer contained in the undercoat layer,
- wherein the precursor that is bonded with the functional groups of the organic polymer is a first precursor,
- wherein the first precursor is bonded to a second precursor adjacent to the first precursor such that the first precursor and the second precursor are cross-linked with each other,
- wherein the atomic layer deposition film comprises a two-dimensional film grown in a planar direction of the undercoat layer, the atoms of the two-dimensional film being bonded in the planar direction,
- wherein a main component of the undercoat layer is the organic polymer, and
- wherein the undercoat layer comprises an inorganic substance, an organic polymer, and a binder, and is formed so that at least some of the first precursor bonds with the binder and the inorganic substance.
Dependencies are inferred from the claim text.