Visible-light-responsive photoactive coating, coated article, and method of making same
AssigneePPG Industries Ohio, Inc.
InventorsCharles B. Greenberg, Janos Szanyi
Life of this patent
Estimating the term…
Abstract
An article includes a substrate having an inner surface and an outer surface. A coating is deposited directly on at least a portion of the substrate outer surface. The coating consists essentially of titania and at least one additional photoabsorption band modifying material selected from vanadium (V), manganese (Mn), magnesium (Mg), scandium (Sc), yttrium (Y), niobium (Nb), molybdenum (Mo), ruthenium (Ru), lead (Pb), nickel (Ni), rhenium (Re), and mixtures thereof. The coating is a substantially non-porous CVD or MSVD coating and an outer surface of the coating is exposed to the environment.
Claims11
An article, comprising:
- a substrate having an inner surface and an outer surface;
- and
- a coating deposited directly on at least a portion of the substrate outer surface,
- wherein the coating consists essentially of titania and at least one additional photoabsorption band modifying material selected from vanadium (V), manganese (Mn), magnesium (Mg), scandium (Sc), yttrium (Y), niobium (Nb), molybdenum (Mo), ruthenium (Ru), lead (Pb), nickel (Ni), rhenium (Re), and mixtures thereof,
- wherein the coating is a substantially non-porous CVD or MSVD coating, and
- wherein an outer surface of the coating is exposed to the environment.
A transparency, comprising:
- a substrate having an inner surface and an outer surface, wherein the substrate is selected from annealed glass, tempered glass, and heat strengthened glass;
- and
- a photoactive coating deposited directly on at least a portion of the substrate outer surface, wherein the photoactive coating is a substantially non-porous CVD or MSVD coating,
- wherein the photoactive coating consists essentially of titania and at least one additional photoabsorption band modifying material selected from chromium (Cr), vanadium (V), manganese (Mn), copper (Cu), iron (Fe), magnesium (Mg), scandium (Sc), yttrium (Y), niobium (Nb), molybdenum (Mo), ruthenium (Ru), tungsten (W), silver (Ag), lead (Pb), nickel (Ni), rhenium (Re), and mixtures thereof,
- wherein an outer surface of the coating is exposed to the environment, and
- wherein a photoabsorption band of the photoactive coating extends at least partly into the range of 400 nm to 800 nm of the electromagnetic spectrum.
Dependencies are inferred from the claim text.