Release film
JP7828423B1Active Publication Date: 2026-03-11DAICEL CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2026-03-11
AI Technical Summary
Technical Problem
Conventional release films exhibit high peeling forces and a tendency to get caught during peeling, leading to issues like zipping and poor releasability, particularly when used with components of solid polymer fuel cells or water electrolysis cells.
Method used
A release film with a hydrogenated aromatic vinyl polymer layer, where the aromatic rings are hydrogenated, providing improved peelability and low peel force, allowing smooth peeling without catching.
Benefits of technology
The release film achieves low peel force and smooth peeling from ion exchange layers, enhancing the productivity of membrane electrode assemblies by maintaining adequate adhesion, especially in high-temperature environments.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007828423000001
Abstract
An object of the present disclosure is to provide a release film with improved releasability (peelability) and a method for producing the same, a laminate including the release film and a supported body, and a method for producing a membrane electrode assembly for a solid polymer fuel cell or a solid polymer membrane water electrolysis cell. The release film of the present disclosure has a release layer containing a hydrogenated aromatic vinyl polymer in which the aromatic ring of an aromatic vinyl polymer is hydrogenated.
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Citation Information
Patent Citations
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