Antireflective coatings with self-cleaning, moisture resistance and antimicrobial properties
AssigneeIntermolecular, Inc.
InventorNikhil D. Kalyankar
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Abstract
Coated article having antireflective property together with self cleaning, moisture resistance and antimicrobial properties can be prepared with a topmost layer of titanium oxide on an antireflective layer, which can be formed by a sol-gel process. The antireflective layer can comprise a porosity forming agent, or an alkyltrialkoxysilane-based binder. The antireflective coating can comprise silica and titania components, with pores to achieve low index of refraction and titania to achieve self-cleaning and antimicrobial properties.
Claims20
A method of making a coated article, the method comprising:
- depositing a plurality of first coatings on a transparent substrate,
- wherein each of the plurality of first coatings is deposited using a solution mixture comprising silica and titania components,
- wherein at least two of the plurality of first coatings have different formulations of silica and titania components;
- and
- depositing a second topmost coating on the plurality of first coatings,
- wherein the second topmost coating is deposited using a solution comprising a titania component.
A coated article comprising:
- a transparent substrate;
- and
- a plurality of layers formed over the transparent substrate, wherein the plurality of layers are formed using a method comprising the steps of:
- depositing the plurality of first coatings on a transparent substrate,
- wherein the first coatings are deposited using one or more solution mixtures comprising silica and titania components,
- wherein at least two of the plurality of first mixtures have different formulations of silica and titania components;
- and
- depositing a second coating on the plurality of first coatings,
- wherein the second coating is deposited using a solution comprising titania component.
A coated article comprising:
- a transparent substrate;
- a plurality of first coatings formed over the transparent substrate,
- wherein the plurality of first coatings comprise silica and titania components,
- wherein at least two of the plurality of first coatings have different formulations of silica and titania components;
- and
- a second coating over the plurality of first coatings,
- wherein the second coating comprises a titanium oxide layer.
Dependencies are inferred from the claim text.