Water-based single-component coating as well as preparation method and application thereof

Through the combination of three different acrylic emulsions, an aqueous single-component coating was formed, which solved the problem of existing white topcoats in pollution resistance and anti-coating, and achieved a high-performance paint film, suitable for children's furniture, and avoided irritation to children's skin.

CN120158173AActive Publication Date: 2025-06-17NIPPON PAINT GUANGZHOU
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Patent Information

Application Number
CN202510383904.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-06-17
Estimated Expiration
2045-03-28

AI Technical Summary

Technical Problem

The existing white topcoat for children's furniture is poor in pollution resistance and graffiti resistance, and contains free isocyanate monomers, which has a great irritation to children's skin and fails to meet the requirements for children's furniture.

Method used

Through the combination of three different acrylic emulsions, including grindable acrylic emulsions, low TG self-crosslinked acrylic emulsions and medium TG self-crosslinked acrylic emulsions, an aqueous single-component coating is formed to achieve excellent pollution resistance and graffiti resistance, and to avoid the presence of isocyanate monomers.

Benefits of technology

The paint film formed by this water-based single-component coating has excellent water resistance, pollution resistance and coating resistance, and is environmentally friendly and safe, and is suitable for the coating of children's furniture.

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Abstract

The invention discloses a water-based single-component coating as well as a preparation method and application thereof, and relates to the technical field of coatings. The water-based single-component coating comprises an emulsion A, an emulsion B and an emulsion C, the emulsion A is a grindable acrylic emulsion, the emulsion B is a low-TG self-crosslinking acrylic emulsion, and the emulsion C is a medium-TG self-crosslinking acrylic emulsion. According to the water-based single-component coating, the VOC content is reduced while the paint film performance is improved, the pollution resistance and the doodling resistance of a paint film formed by the coating are improved, and the water-based single-component coating has good environment friendliness and small skin irritation and is suitable for being used as white finish for children furniture.
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