Low-maintenance coatings
First Claim
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1. A low-maintenance coating on a substrate, the coating comprising a base film positioned directly over a first major surface of the substrate and a film comprising titania positioned directly over the base film, wherein the base film has a thickness of less than about 100 angstroms, and wherein the film comprising titania has a thickness of less than 50 angstroms.
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Abstract
The invention provides a substrate bearing a low-maintenance coating. The coating includes at least two films: a base film optionally comprising silica (e.g., silicon dioxide) and a film comprising titania (e.g., titanium dioxide). The invention also provides methods of depositing such coatings.
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Citations
40 Claims
- 1. A low-maintenance coating on a substrate, the coating comprising a base film positioned directly over a first major surface of the substrate and a film comprising titania positioned directly over the base film, wherein the base film has a thickness of less than about 100 angstroms, and wherein the film comprising titania has a thickness of less than 50 angstroms.
- 9. A low-maintenance coating on a glass sheet, the coating comprising a base film positioned over a first major surface of the glass sheet and a film comprising titania positioned directly over the base film, wherein the base film comprises silica and has a thickness of less than 100 angstroms, and wherein the film comprising titania has a thickness of less than 100 angstroms.
- 17. An insulating glass unit comprising two spaced-apart panes bounding a between-pane space, wherein at least one of the panes has a desired major surface bearing a low-maintenance coating, wherein said desired major surface is an exterior surface of the unit and faces away from the between-pane space, the coating comprising a base film positioned directly over said desired major surface and a film comprising titania positioned directly over the base film, wherein the base film comprises silica has a thickness of less than 100 angstroms and the film comprising titania has a thickness of less than 50 angstroms.
- 24. A low-maintenance coating on a glass sheet, the coating comprising a base film extending directly from a first major surface of the glass sheet to a thickness of less than about 100 angstroms, and a film comprising titania extending directly from a surface of the base film to a thickness of less than 50 angstroms.
- 32. A low-maintenance coating on a glass sheet, the coating comprising a base film deposited directly over a first major surface of the glass sheet and having a thickness of less than 100 angstroms but greater than about 30 angstroms, and a film comprising titania deposited directly over the base film and having a thickness of less 100 angstroms but greater than about 30 angstroms.
Specification