Shock-absorbing coating composition and laminate substrate

A polysilazane-based coating composition with nanosilica forms an impact-absorbing layer on the opposite side of the substrate, addressing the challenges of impact resistance and flexibility in organic EL panel displays, ensuring high light transmittance and durability.

JP7874069B2Active Publication Date: 2026-06-15SHIN ETSU CHEMICAL CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
SHIN ETSU CHEMICAL CO LTD
Filing Date
2023-03-03
Publication Date
2026-06-15

AI Technical Summary

⚠Technical Problem

Existing organic EL panel displays in foldable devices face challenges in achieving high impact resistance, flexibility, and light transmittance, with conventional methods failing to meet these requirements simultaneously.

⚗Method used

A shock-absorbing coating composition comprising a polysilazane compound and nanosilica is applied to form an impact-absorbing layer on the opposite side of the substrate, enhancing impact resistance and maintaining high light transmittance, which can be used to create a laminated substrate with improved durability.

🎯Benefits of technology

The laminated substrate effectively absorbs impact, reducing substrate deformation and cracking, while maintaining transparency, suitable for optical applications and enhancing the durability of flexible displays.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a coating composition for impact absorption capable of forming an impact absorbing layer while enhancing the impact resistance of a substrate and ensuring superior optical transparency, and a laminated substrate with an impact absorbing layer formed through the curing of the coating composition for impact absorption.SOLUTION: A composition can be cured to form an impact absorbing layer. The composition comprises a polysilazane compound that includes a repeating unit represented by formula (1) (where each of R1 and R2 independently represents a hydrogen atom or a group selected from C1-6 aliphatic hydrocarbon groups, C6-12 aromatic hydrocarbon groups, and C1-6 alkoxy groups) with a weight average molecular weight of 500-50,000.SELECTED DRAWING: None
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