Reflective articles and methods of manufacturing same
First Claim
Patent Images
1. A method of manufacturing a reflective article comprising a reflective metal coating deposited on a glass substrate, the method comprising the steps of, in the order recited:
- (a) forming a metal coating comprising a reflective layer of silver on a surface of the glass substrate;
(b) rinsing the metal coating;
(c) contacting the metal coating with an aqueous treatment solution containing ions of at least one metal selected from the group consisting of Cr(II);
V(II or III);
Ti(III or II);
Fe(II);
In(I or II);
Cu(I); and
Al(III); and
(d) washing and drying the thus treated metal coating.
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Abstract
A reflective article such as a mirror or an energy-screening transparent panel comprises a reflective metal coating deposited on a glass substrate. The metal coating comprises a reflective layer of silver and has been treated with a solution containing ions of at least one of the group consisting of: Cr (II); V (II or III); Ti (III or II); Fe (II); In (I or II); Cu (I); and Al (III). Such a treatment affords protection of the reflective coating against corrosion.
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Citations
13 Claims
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1. A method of manufacturing a reflective article comprising a reflective metal coating deposited on a glass substrate, the method comprising the steps of, in the order recited:
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(a) forming a metal coating comprising a reflective layer of silver on a surface of the glass substrate; (b) rinsing the metal coating; (c) contacting the metal coating with an aqueous treatment solution containing ions of at least one metal selected from the group consisting of Cr(II);
V(II or III);
Ti(III or II);
Fe(II);
In(I or II);
Cu(I); and
Al(III); and(d) washing and drying the thus treated metal coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of manufacturing a reflective article comprising a reflective metal coating deposited on a glass substrate, the method comprising the steps of:
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(a) forming a metal coating comprising a reflective layer of silver on a surface of the glass substrate; (b) contacting the metal coating with an aqueous treatment solution containing ions of at least one metal selected from the group consisting of Cr(II);
V(II or III);
Ti(III or II);
Fe(II);
In(I or II);
Cu(I); and
Al(III); and(c) washing and drying the thus treated metal coating, wherein the glass substrate is a glass sheet, and wherein the metal coating is deposited onto the glass sheet as a transparent coating, and the metal coated glass sheet is held in spaced relation from at least one other glass sheet to form a hollow glazing unit, the metal coating being located inside the glazing unit.
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13. A method of manufacturing a reflective article comprising a reflective metal coating deposited on a glass substrate, the method comprising the steps of:
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(a) forming a metal coating comprising a reflective layer of silver on a surface of the glass substrate; (b) contacting the metal coating with an aqueous treatment solution containing ions of at least one metal selected from the group consisting of Cr(II);
V(II or III);
Ti(III or II);
Fe(II);
In(I or II);
Cu(I); and
Al(III); and(c) washing and drying the thus treated metal coating, wherein said metal coating is formed by being deposited by vacuum deposition.
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Specification