# US 2019/0168492 A1 · Gas barrier film and method of producing gas barrier film > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0168492 A1 - Document ID: US20190168492A1 - Status: Published application - Kind: A1 - Application number: 16/256,892 - Filed: 2019-01-24 - Published: 2019-06-06 - Earliest claimed: 2016-08-31 - Assignees: FUJIFILM Corporation - Applicants: FUJIFILM Corporation - Inventors: Eijiro IWASE - Web page: https://patentgrep.com/patent/US20190168492A1 ## CPC - B32B 27/30: comprising vinyl {(co)polymers; comprising acrylic (co)polymers} - B32B 9/00: Layered products comprising a {layer of a} particular substance not covered by groups B32B11/00 - B32B29/00 - B32B 27/08: of synthetic resin - C09D 4/00: Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16} - C08F 222/1045: {of aromatic tetraalcohols} - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS ## Abstract The present invention provides a gas barrier film of an organic-inorganic lamination type having good adhesiveness between an organic layer disposed between inorganic layers and a lower inorganic layer thereof, and a method of producing the gas barrier film. A gas barrier film having two or more combinations of an organic layer and an inorganic layer on one surface of a support, in which a surface of the support is the organic layer, an organic layer on the surface of the support is an underlying organic layer, an organic layer between the inorganic layers is an intermediate organic layer, a thickness of the intermediate organic layer is 0.05 to 0.5 μm, a ratio between the thickness of the intermediate organic layer and a thickness of the underlying organic layer is 0.1 or less, and the intermediate organic layer includes a polymer of (meth)acrylate represented by Formula (1). ## Claims ### Claim 1 A gas barrier film comprising: two or more combinations of an inorganic layer and an organic layer which becomes an underlying base of the inorganic layer on one surface of a support, wherein in a case where the organic layer is provided on a surface of the support, the organic layer on the surface of the support is an underlying organic layer, and the organic layer between the inorganic layers is an intermediate organic layer, a thickness of the intermediate organic layer is 0.05 to 0.5 μm, and a ratio between the thickness of the intermediate organic layer and a thickness of the underlying organic layer is 0.1 or less, and the intermediate organic layer contains a polymer of (meth)acrylate represented by Formula (1), in Formula (1), RI's each represent a substituent and may be the same or different from each other; and n's each represent an integer of 0 to 5 and may be the same or different from each other, where at least one R1 includes (meth)acryloyl group. ### Claim 2 (depends on 1) The gas barrier film according to claim 1, wherein the intermediate organic layer contains a polymer of urethane (meth)acrylate. ### Claim 3 (depends on 2) The gas barrier film according to claim 2, wherein the urethane (meth)acrylate is hexafunctional or higher functional urethane (meth)acrylate. ### Claim 4 (depends on 1) The gas barrier film according to claim 1, wherein the intermediate organic layer contains a polymer of (meth)acrylate having a double bond equivalent of 200 or less. ### Claim 5 (depends on 1) The gas barrier film according to claim 1, wherein the (meth)acrylate represented by Formula (1) is tetrafunctional or higher functional (meth)acrylate. ### Claim 6 A method of producing a gas barrier film comprising: alternately forming an organic layer and an inorganic layer on one surface of a support such that two or more layers of the organic layers and two or more layers of the inorganic layers are formed, wherein in a case where the organic layer is formed on a surface of the support, an organic layer which is formed on the surface of the support is an underlying organic layer, and an organic layer which is formed between the inorganic layers is an intermediate organic layer, the underlying organic layer and the intermediate organic layer are formed such that a thickness of the intermediate organic layer is 0.05 to 0.5 μm, and a ratio between the thickness of the intermediate organic layer and a thickness of the underlying organic layer is 0.1 or less, and, the intermediate organic layer is formed by performing a coating step of applying a polymerizable composition containing (meth)acrylate represented by Formula (1) to the inorganic layer, a drying step of heating and drying the polymerizable composition applied to the inorganic layer, and a curing step of curing the dried polymerizable composition, in Formula (1), R1's each represent a substituent and may be the same or different from each other; and n's each represent an integer of 0 to 5 and may be the same or different from each other, where at least one R1 includes (meth)acryloyl group. ### Claim 7 (depends on 6) The method of producing a gas barrier film according to claim 6, wherein the polymerizable composition contains urethane (meth)acrylate. ### Claim 8 (depends on 7) The method of producing a gas barrier film according to claim 7, wherein the urethane (meth)acrylate is hexafunctional or higher functional urethane (meth)acrylate. ### Claim 9 (depends on 6) The method of producing a gas barrier film according to claim 6, wherein the polymerizable composition contains polyfunctional (meth)acrylate having a double bond equivalent of 200 or less. ### Claim 10 (depends on 6) The method of producing a gas barrier film according to claim 6, wherein the (meth)acrylate represented by Formula (1) is tetrafunctional or higher functional (meth)acrylate. ### Claim 11 (depends on 6) The method of producing a gas barrier film according to claim 6, wherein the inorganic layer and the organic layer are formed by a roll to roll method, after the inorganic layer is formed and before the formed inorganic layer is brought into contact with another member, a protective film is laminated on a surface of the inorganic layer, and, before the intermediate organic layer is formed, the protective film is peeled off from the inorganic layer, and before the inorganic layer is brought into contact with the other member, the coating step is performed. ### Claim 12 (depends on 11) The method of producing a gas barrier film according to claim 11, wherein the protective film is formed of polyolefin. ### Claim 13 (depends on 6) The method of producing a gas barrier film according to claim 6, wherein a viscosity of the polymerizable composition is 1 Pa·s or more.