Method for manufacturing glass sheet composite

1 . A method for manufacturing a glass sheet composite comprising two or more sheets and an intermediate layer between at least a pair of sheets of the sheets, the pair of the sheets consisting of a sheet 1 A and a sheet 1 B, at least one of the sheet 1 A and the sheet 1 B being a glass sheet, and the method comprising:

applying a liquid agent for the intermediate layer and a sealant to at least a part of a main surface of the sheet 1 A, wherein the liquid agent for the intermediate layer comprises a curable resin;

bonding the sheet 1 B to the main surface of the sheet 1 A to which the liquid agent for the intermediate layer and the sealant are applied to obtain a laminate, wherein the bonding is performed at atmospheric pressure;

subjecting the laminate to reduced pressure after the bonding; and

curing the liquid agent for the intermediate layer after the laminate is subjected to the reduced pressure.

2 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the reduced pressure is achieved by a decompression chamber, and

(space volume (L) in the decompression chamber/exhaust capacity (L/min) in the decompression chamber) is 1.8 or less.

3 . The method for manufacturing a glass sheet composite according to claim 1 , wherein when the laminate is subjected to the reduced pressure, a pressure is reduced to 100 Pa or less in 1 minute to 180 minutes.

4 . The method for manufacturing a glass sheet composite according to claim 1 , wherein a viscosity coefficient of the sealant is larger than a viscosity coefficient of the liquid agent for the intermediate layer.

5 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the sealant has a viscosity coefficient of 1×10 −1 Pa·s or more, and the liquid agent for the intermediate layer has a viscosity coefficient of 1×10 3 Pa·s or less.

6 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the liquid agent for the intermediate layer comprises a silicone.

7 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the liquid agent for the intermediate layer has a coating pattern of a layer pattern, a dot pattern, a lattice pattern, or a stripe pattern.

8 . The method for manufacturing a glass sheet composite according to claim 1 , wherein a coating thickness of the sealant is larger than a coating thickness of the liquid agent for the intermediate layer.

9 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the liquid agent for the intermediate layer has a coating thickness of 5 μm to 500 μm.

10 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the sealant has a coating thickness of 10 μm to 1000 μm.

11 . The method for manufacturing a glass sheet composite according to claim 1 , further comprising pressurizing the laminate after the laminate is subjected to the reduced pressure.

12 . The method for manufacturing a glass sheet composite according to claim 11 , wherein the pressurization is performed by compressing the laminate at a pressure of 0.1 MPa to 10 MPa for 1 minute to 30 minutes.

13 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the sealant comprises a curable resin, and

the method further comprises curing the sealant after the laminate is subjected to the reduced pressure.

14 . The method for manufacturing a glass sheet composite according to claim 1 , wherein each of the sheets has a curved surface.

15 . The method for manufacturing a glass sheet composite according to claim 1 , wherein the curable resin is a photocurable resin.