Laminate

JP2026094028APending Publication Date: 2026-06-09TORAY INDUSTRIES INC

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TORAY INDUSTRIES INC
Filing Date
2025-10-27
Publication Date
2026-06-09

AI Technical Summary

Benefits of technology

【0008】 本発明により、圧縮永久歪が小さく、接着性、耐久性、及び加工性に優れる積層体を提供することができる。

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Abstract

To provide a laminate with low compression set and excellent adhesion, durability, and processability. [Solution] An adhesive layer containing an acid-modified olefin resin having an isocyanate crosslinking structure and an epoxy resin is laminated on at least one side of the base film. A laminate in which the base film is composed of one or more selected from the group consisting of polyphenylene sulfide, polyphenyl sulfone, polyphenylene ether, polyimide, and polyethylene telenaphthalate.
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Claims

1. An adhesive layer comprising an acid-modified olefin resin having an isocyanate crosslinking structure and an epoxy resin is laminated on at least one side of the base film. A laminate in which the base film is composed of one or more selected from the group consisting of polyphenylene sulfide, polyphenyl sulfone, polyphenylene ether, polyimide, and polyethylene telenaphthalate.

2. The laminate according to claim 1, wherein the melting point of the adhesive layer is 60°C or higher and 110°C or lower.

3. The laminate according to claim 2, wherein the content of the epoxy resin is 0.1% by mass or more and 10.0% by mass or less in 100.0% by mass of the adhesive layer.

4. The laminate according to claim 3, wherein the thickness of the adhesive layer is 1.0 μm or more and 50.0 μm or less.

5. A sealing material for a fuel cell, comprising a laminate according to any one of claims 1 to 4.

6. A sealing material for a water electrolysis apparatus, comprising a laminate according to any one of claims 1 to 4.