Active energy ray curable compositions, cured products, and laminates
The combination of (poly)pentaerythritol unit-containing non-urethane poly(meth)acrylate, alicyclic-containing poly(meth)acrylate, and urethane poly(meth)acrylate in active energy ray curable compositions addresses the issues of adhesion and hardness in cured products, resulting in improved performance under various environmental conditions.
JP2026085879APending Publication Date: 2026-05-25ARAKAWA CHEM IND LTD
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- ARAKAWA CHEM IND LTD
- Filing Date
- 2025-11-06
- Publication Date
- 2026-05-25
AI Technical Summary
Technical Problem
Existing active energy ray curable compositions fail to produce cured products with good initial adhesion, adhesion after boiling tests, and adhesion after humid heat tests, as well as adequate pencil hardness.
Method used
The composition includes (poly)pentaerythritol unit-containing non-urethane poly(meth)acrylate, alicyclic-containing poly(meth)acrylate, and urethane poly(meth)acrylate, optionally with a photopolymerization initiator, to enhance adhesion and hardness.
Benefits of technology
The composition achieves cured products with improved initial adhesion, adhesion after boiling and humid heat tests, and enhanced pencil hardness.
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Figure 2026085879000001 
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Abstract
To provide an active energy ray curable composition, a cured product, and a laminate. [Solution] An active energy ray curable composition comprising (poly)pentaerythritol unit-containing non-urethane poly(meth)acrylate, alicyclic-containing poly(meth)acrylate, and urethane poly(meth)acrylate.
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