A waterborne non-tacky high gloss topcoat and a preparation method thereof
By leveraging the synergistic effect of polyurethane-acrylic core-shell hybrid emulsion and nano-silica/zirconia composite sol, a dense and stable organic-inorganic composite cross-linked structure is constructed. This solves the problems of slow film formation and insufficient anti-blocking performance of water-based high-gloss topcoats under low temperature or high humidity environments, achieving high gloss, rapid film formation, and excellent anti-tack properties, while improving the hardness and water resistance of the coating film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU GREEN BELT NEW MATERIAL TECH CO LTD
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing water-based high-gloss topcoats have a slow film-forming speed in low-temperature or high-humidity environments, insufficient early hardness and anti-blocking properties, and are prone to re-tack after application. Furthermore, increasing hardness and anti-blocking properties can easily lead to a decrease in film flexibility and a deterioration in leveling properties, making it difficult to achieve both high gloss and no re-tack performance.
A dense and stable organic-inorganic composite crosslinking structure is constructed by using polyurethane-acrylic core-shell hybrid emulsion, modified crosslinking agent, and nano-silica/zirconia composite sol, which improves the surface hardness and anti-blocking properties of the paint film. Through the synergistic effect of polyurethane-acrylic core-shell hybrid emulsion, modified crosslinking agent, and nano-silica/zirconia composite sol, a dense and stable organic-inorganic composite crosslinking structure is constructed, which enhances the hot-pressing anti-blocking properties and the anti-retack properties after humid heat.
It achieves high gloss, rapid film formation, excellent anti-tack and good chemical resistance, improves the pencil hardness and 48h water resistance stability of the paint film, and solves the film formation problem of water-based high-gloss topcoats in low temperature or high humidity environments.
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Abstract
Citation Information
Patent Citations
High-gloss water-based two-component finish paint and preparation method thereof
CN121450181A