Laminate

Abstract

A laminate 1 comprises a base material 2, a vapor-deposited inorganic layer 3, an adhesive agent layer 5, and a resin film layer 6 in the stated order. A barrier coat layer 4 is interposed between the base material 2 and the vapor-deposited inorganic layer 3 and / or between the vapor-deposited inorganic layer 3 and the adhesive agent layer 5. The adhesive agent layer 5 has a thermal expansion rate of at most 100.0×10-5K-1.

Claims

1. It is a laminate comprising, in order, a substrate, an inorganic vapor-deposited layer, an adhesive layer, and a resin film layer. A barrier coat layer is interposed between the substrate and the inorganic vapor deposition layer, and / or between the inorganic vapor deposition layer and the adhesive layer. The adhesive layer is a cured coating film of a two-component curable polyurethane adhesive comprising a main component and a curing agent. The thermal expansion coefficient of the adhesive layer, measured by the TMA method under conditions of a load setting of 0g and a heating rate of 10°C / min, within a temperature range of 40 to 135°C, is 100.0 × 10⁻⁶. －５ K －１ The following is a laminate.

2. The laminate according to claim 1, wherein the barrier coating layer comprises a polyurethane resin.

3. The polyurethane resin comprises a reaction product of an isocyanate group-terminated prepolymer and a chain extender. The laminate according to claim 2, wherein the isocyanate group-terminated prepolymer comprises a reaction product of a polyisocyanate component containing xylylene diisocyanate and an active hydrogen group-containing component containing an active hydrogen group-containing compound that includes a short-chain diol having 2 to 6 carbon atoms and a hydrophilic group.

4. The laminate according to claim 1, wherein the curing agent comprises an aromatic aliphatic polyisocyanate derivative and / or an aliphatic polyisocyanate derivative.

5. The adhesive layer contains an ester group, The laminate according to claim 1, wherein the content of the ester group is 7.00 mmol / g or more relative to the adhesive layer.

6. The laminate according to claim 3, wherein the chain extender comprises ethylenediamine.

7. The thermal expansion coefficient of the barrier coat layer, as measured by the TMA method under the conditions of a load setting of 0 g and a heating rate of 10 °C / min, in a temperature range of 40 to 120 °C, is 200 × 10 －５ K －１ The laminate according to claim 1, which is as follows:

8. The barrier coat layer is a dried coating film of polyurethane dispersion containing the polyurethane resin. The polyurethane dispersion comprises a crosslinking agent, The laminate according to claim 2, wherein the crosslinking agent comprises at least one selected from the group consisting of epoxysilane, aqueous isocyanate, and carbodiimide compounds.

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