Preparation of a colored metallic, velvet effect powder coating

By forming a dense organic polymer coating layer on the surface of metallic pigments and using a bonding composite process, the problems of stability, color integration, and texture controllability of metallic pigments have been solved, achieving stability and decorative effects for high-end coatings.

CN122104010BActive Publication Date: 2026-07-14ZHEJIANG CHAOLANG ADVANCED MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG CHAOLANG ADVANCED MATERIALS
Filing Date
2026-04-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies cannot simultaneously solve the problems of stability of metallic pigments, integration of color with metal, and controllability of texture. As a result, coatings are prone to defects such as color difference, streaks, unevenness and unstable texture during processing and use, which cannot meet the needs of high-end applications.

Method used

The metallic pigments modified with ionic liquids form a dense organic polymer coating layer by in-situ polymerization on the surface of the metallic pigments. Combined with the covalent bonding of the coloring monomers and the micro-differential design of the polymer layer, the color and metal are bonded at the molecular level. The bonding composite process ensures uniform dispersion and texture formation.

Benefits of technology

It significantly improves the oxidation resistance and chemical stability of metallic pigments, achieves molecular-level integration of color and metallic luster, forms a uniform and delicate cotton-like texture, and improves the mechanical strength and durability of the coating.

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Abstract

The application discloses a kind of preparation of color metal texture soft grain effect powder coating, belong to powder coating technical field.The coating with bisphenol A type epoxy resin, carboxyl polyester resin as matrix, and contain specially made ion liquid modified metal pigment.The characteristics of the pigment are that by polymerizable ionic liquid in-situ polymerization of methyl methacrylate and coloring monomer is mediated on the surface of aluminum powder, and color polymer coating is formed.The application adopts base material melt extrusion+effect pigment bonding composite process to prepare coating;Through chemical grafting mode, simultaneously solve the technical problems such as metal pigment easy oxidation, color and metal sense separation, texture control difficult, the obtained coating has the comprehensive advantages such as color gorgeous integration, metal texture lasting, soft grain effect delicate and uniform, strong adhesion, suitable for high-end decoration field.
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