Gas-barrier laminate film and method for producing same, and image display device

Abstract

A method for producing a gas-barrier laminate film comprising at least one inorganic layer and at least one organic layer on a substrate film, which comprises forming the organic layer by polymerizing a monomer composition comprising an acrylate monomer having a phosphate ester group, a monomer having a phosphate ester group or their mixture. The produced gas-barrier laminate film maintains its excellent gas-barrier property even when folded.

Description

Claims

1. A method for producing a gas-barrier laminate film comprising at least one inorganic layer and at least one organic layer on a substrate film, which comprises forming the organic layer by polymerizing a monomer composition comprising an acrylate monomer having a phosphate ester group, a methacrylate monomer having a phosphate ester group or a mixture thereof.

2. The method for producing a gas-barrier laminate film according to claim 1, wherein the acrylate monomer having a phosphate ester group and the methacrylate monomer having a phosphate ester group are represented by the following formula (1):

3. The method for producing a gas-barrier laminate film according to claim 1, wherein the monomer composition contain from 1 to 50% by mass of the monomer of formula (1).

4. The method for producing a gas-barrier laminate film according to claim 1, wherein the monomer composition contains a bifunctional acrylate monomer, a bifunctional methacrylate monomer or their mixture.

5. The method for producing a gas-barrier laminate film according to claim 1, wherein the organic layer is formed through flash vapor deposition, and the monomer composition is polymerized in a vacuum of at most 100 Pa.

6. The method for producing a gas-barrier laminate film according to claim 1, wherein the organic layer and the inorganic layer are laminated all the time in a vacuum of at most 100 Pa.

7. A gas-barrier laminate film produced by the method of claim 1.

8. A gas-barrier laminate film having at least one inorganic layer and at least one organic layer on a substrate film, wherein the organic layer contains at least one polymer having a phosphate ester group.

9. The gas-barrier laminate film according to claim 7, wherein the organic layer and the inorganic layer are laminated in that order on the substrate film.

10. The gas-barrier laminate film according to claim 7, wherein the inorganic layer and the organic layer are laminated in that order on the substrate film.

11. The gas-barrier laminate film according to claim 7, which has at least one inorganic layer and at least one organic layer on both surfaces of the substrate film.

12. The gas-barrier laminate film according to claim 7, which additionally has a transparent conductive layer.

13. The gas-barrier laminate film according to claim 7, which has an oxygen permeability at 38° C. and a relative humidity 90% of at most 0.02 ml/(m2·day·atm), and has a water vapor permeability at 38° C. and a relative humidity 90% of at most 0.01 g/(m2·day).

14. An image display device comprising the gas-barrier laminate film of claim 7.

15. The image display device according to claim 14, which is flexible.

16. The image display device of according to claim 14, which is an organic EL device.