Compositions and methods for forming coatings of selected color on a substrate and articles produced thereby
First Claim
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1. A coating method comprising the steps of:
- providing a copper containing coating component and a manganese containing coating component, and applying the coating components onto the surface of a heated substrate to pyrolyze a coating wherein the copper to manganese molar ratio in the coating as determined by XRF is in the range of about 0.8 to 1.2 and the coating has a blue color in transmission.
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Abstract
A copper containing component and a manganese containing component are applied onto the surface of a substrate to form a coating having a selected ratio of copper to manganese to form a desired color. For a brown color, the film molar ratio of copper to manganese is above 1; for an amber color, the molar ratio is below 1, and for a blue color the film molar ratio is about 1. Further, color shifting of a multi-component coating upon subsequent heat treatment is minimized or prevented by determining the most mobile species in the coating and then placing a concentration gradient layer of an oxide of that mobile species between the substrate and the coating.
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Citations
24 Claims
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1. A coating method comprising the steps of:
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providing a copper containing coating component and a manganese containing coating component, and applying the coating components onto the surface of a heated substrate to pyrolyze a coating wherein the copper to manganese molar ratio in the coating as determined by XRF is in the range of about 0.8 to 1.2 and the coating has a blue color in transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A coating method comprising the steps of:
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providing a copper containing coating component and a manganese containing coating component, and applying the copper containing component onto the surface of the substrate;
heating the substrate; and
applying the manganese containing component onto the surface of the heated substrate to pyrolyze a coating wherein the copper to manganese molar ratio in the coating as determined by XRF is in the range of about 0.8 to 1.2 and the coating has a blue color in transmission.
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20. A coating method comprising the steps of:
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providing a copper containing coating component and a manganese containing coating component, and applying the manganese containing component onto the surface of the substrate;
heating the substrate; and
applying the copper containing component onto the surface of the heated substrate to pyrolyze a coating wherein the copper to manganese molar ratio in the coating as determined by XRF is in the range of about 0.8 to 1.2 and the coating has a blue color in transmission.
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21. A method of preventing color bleaching, comprising the steps of:
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selecting a desired coating mixture having two or more components to be deposited on a surface of a substrate, each of the components including at least positive ions of a metal;
determining the component having most mobile metal ions;
depositing a concentration gradient deterrent layer of an oxide of the most mobile metal ions on the surface of the substrate; and
applying the coating mixture over the concentration gradient deterrent layer. - View Dependent Claims (22, 23, 24)
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Specification