Laminated glass and method for manufacturing same

A method for manufacturing laminated glass with separate encapsulation and bonding steps using thermoplastic and photocurable resins addresses the issue of solar cell degradation during multilayer bonding, resulting in durable and efficient laminated glass for vehicles.

WO2026014288A1PCT designated stage Publication Date: 2026-01-15AGC INC
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Patent Information

Application Number
PCT/JP2025/023444
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-12
Filing Date
2025-06-30
Publication Date
2026-01-15

AI Technical Summary

Technical Problem

Existing methods for encapsulating solar cells within laminated glass require bonding multiple layers at once, which can expose the solar cell to air, leading to potential degradation and impose restrictions on thermocompression bonding conditions due to layers with low resistance to heat and pressure.

Method used

A method for manufacturing laminated glass involving separate encapsulation and bonding steps, using thermoplastic and photocurable resins for intermediate layers, and adjusting bonding conditions to minimize exposure and accommodate vulnerable layers.

Benefits of technology

This method reduces solar cell degradation and allows for easier multilayer encapsulation, enabling the production of laminated glass suitable for vehicle applications with improved durability and efficiency.

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Abstract

The present invention provides: a method for manufacturing a laminated glass, with which multi-layering is easily achieved in a laminated glass where a photovoltaic layer is sealed; and a laminated glass which is suitably manufactured by said manufacturing method.　This method for manufacturing a laminated glassincludes: preparing a first laminate that has a first glass plate, a first intermediate layer, a photovoltaic layer, a second intermediate layer, and a transparent base material in this order; and arranging and bonding at least a third intermediate layer and a second glass plate in this order on the transparent base material side of the first laminate.
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Citation Information

Patent Citations

  • Laminated glass and method of manufacturing the same

    JP2004111952A

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    JP2023523367A

  • Easily adhesive substrate and method for manufacturing same, solar cell protective sheet provided with easily adhesive substrate, method for manufacturing same, and solar cell module

    WO2013180139A1

  • Glass panel

    WO2014126065A1

  • Thermoplastic resin film, laminate, and optical laminate

    WO2024122514A1