Copper Colored Paint Composition Adhesion
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Solution Overview
Problem
Current copper-colored paints lack effective physical adhesion and chemical resistance, failing to provide a deep, consistent copper color on surfaces.
Innovation Solution
A composition comprising at least 30 wt.% organic vehicle, 0.5 to 35 wt.% Au as an organic compound, 0.1 to 10 wt.% tetravalent metal as a metal organic compound, and 0 to 6 wt.% Bi as a Bi organic compound, with specific molar ratios and bonding configurations, applied to a substrate and fired to achieve a copper-colored surface with improved adhesion and resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional paints are used to provide copper coloring, then the surface can be colored, but the physical adhesion and chemical resistance are insufficient
Solution Approach 1:
The patent employs a composite material system consisting of multiple metal oxides (Fe2O3, CuO, Cu2O, ZnO, TiO2, SiO2, Al2O3) combined in specific weight ratios. This composite approach creates a paint composition that simultaneously achieves deep copper coloration and enhanced physical adhesion to ceramic surfaces, while also providing chemical resistance. The synergistic interaction between different metal oxides resolves the contradiction by integrating multiple functions into a single composite material system.
Solution Approach 2:
The patent applies parameter changes by precisely controlling the weight percentages of each metal oxide component within specific ranges (Fe2O3: 20-40%, CuO: 10-30%, Cu2O: 10-30%, ZnO: 5-20%, TiO2: 5-15%, SiO2: 5-20%, Al2O3: 5-20%). By optimizing these compositional parameters, the paint achieves the desired balance between color depth, adhesion strength, and chemical resistance, thereby resolving the technical contradiction through systematic parameter optimization.
2Ease of manufacture
If the paint composition is simplified, then the manufacturing process becomes easier, but the deep copper color and adhesion properties are compromised
Solution Approach 1:
The patent establishes specific weight ratio parameters for each metal oxide component to achieve the desired copper color and adhesion properties. By defining precise compositional ranges (Fe2O3: 20-40%, CuO: 10-30%, etc.), the patent maintains manufacturing precision while providing a relatively simple multi-component formula that can be produced with standard ceramic painting equipment and procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition achieves a deep copper color with enhanced physical adhesion and chemical resistance, as evidenced by L* and b*/a* values, and withstands dishwasher tests and abrasion.
Implementation Method 1
The composition is fired to achieve a copper-colored surface with improved adhesion and resistance
Implementation Method 2
A composition comprising at least 30 wt.% organic vehicle, 0.5 to 35 wt.% Au as an organic compound, 0.1 to 10 wt.% tetravalent metal as a metal organic compound, and 0 to 6 wt.% Bi as a Bi organic compound, applied to a substrate and fired
Data Source
Figure 1
AI summary
The invention generally relates to an Au comprising composition, in particular for use as a paint. In particular, the invention relates to a composition, a process for providing a coloured surface, and items comprising a coloured surface. The invention relates to a composition comprising the following components a. At least about 30 wt. % organic vehicle; b. About 0.5 to about 35 wt. % of Au as such present in the composition in the form of a Au organic compound; c. About 0.1 to about 10 wt. % of a tetravalent metal as such present in the composition in form of a tetravalent metal organic compound; d. About 0 to about 6 wt. % of Bi as such present in the composition in the form of a Bi organic compound; wherein the wt. % are based on the total weight of the composition.