Water-based release coating agent, cured product, and laminate

By using an emulsified polymer of (meth)acrylate containing C4-18 alkyl groups and hydroxyl-containing alkyl (meth)acrylate units, combined with a diol with an acetylene structure, a water-based release coating agent is prepared. This solves the shortcomings of water-based release coating agents in terms of release force and surface properties, and is suitable for the surface treatment of plastic substrates for electronic equipment and automotive parts.

CN120648324APending Publication Date: 2025-09-16ARAKAWA CHEM IND LTD
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Patent Information

Application Number
CN202510297128.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-03-15
Filing Date
2025-03-13
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Conventionally, it is difficult to produce a cured product having good release strength and surface properties using a water-based release coating agent.

Method used

An emulsified polymer containing a (meth)acrylate unit containing a C4-18 alkyl group and an alkyl (meth)acrylate unit containing a hydroxyl group is combined with a diol containing an acetylene structure to prepare a water-based release coating agent.

Benefits of technology

It achieves excellent peel strength and surface properties, making it suitable for surface treatment of plastic substrates in electronic devices and automotive parts.

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Abstract

[Problem] To provide a water-based release coating agent, a cured product, and a laminate. [Technical means] A water-based release coating agent comprising: a polymer comprising a (meth) acrylate unit containing a C4-18 alkyl group and an alkyl (meth) acrylate unit containing a hydroxyl group, the polymer being an emulsion polymer;
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Claims

1. A water-based peeling coating agent, The release coating agent comprises: a polymer and water, The polymer comprises a (meth)acrylate unit containing a C4-18 alkyl group and an alkyl (meth)acrylate unit containing a hydroxyl group, and the polymer is an emulsifying polymer. 2 . The water-based release coating agent according to claim 1 , comprising a diol containing an acetylene structure.

3. A cured product of the water-based release coating agent according to claim 1 or 2. A laminate comprising the cured product according to claim 3 .

Citation Information

Patent Citations

  • Alpha, beta-unsaturated carboxylic acid ester of dimer diol mixture

    JP1997136861A

  • Active energy ray-curable resin composition, active energy ray-curable hydrous resin composition, coating agent composition, cured film and film

    JP2021017592A