Method of making coated articles and coated articles made thereby
AssigneePPG Industries Ohio, Inc.
InventorsHarry Buhay, James J. Finley, James P. Thiel, John P. Lehan
Life of this patent
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Abstract
A method of making a coated substrate includes providing a substrate having a functional coating with a first emissivity value; depositing a coating material having a second emissivity value over at least a portion of the functional coating prior to heating to provide a coating stack having an emissivity value greater than the emissivity value of the functional coating; and heating the coated substrate.
Claims37
A method of making a coated substrate, comprising:
- providing a substrate having a functional coating with a first emissivity value;
- and
- depositing a coating material having a second emissivity value over at least a portion of the functional coating to provide a coating stack having an emissivity value greater than the emissivity value of the functional coating.
A method of making a laminated article, comprising the steps of:
- providing a first substrate having a major surface;
- applying a functional coating having an emissivity value over at least a portion of the first substrate major surface;
- applying a protective coating over at least a portion of the functional coating to form a coating stack having an emissivity value greater than the emissivity value of the functional coating;
- providing a second substrate;
- heating the first and second substrates to desired shapes;
- and
- laminating the first and second substrates together with an interlayer, with the protective coating facing the interlayer.
A method of making a coated article, comprising the steps of:
- providing a coating having a predetermined infrared reflectance and a predetermined emissivity;
- and
- altering the coating such that the emissivity increases but the infrared reflectance remains substantially the same.
A laminated article, comprising:
- a first ply having a first major surface;
- a functional coating deposited over at least a portion of the first major surface and having an emissivity value;
- a protective coating deposited over at least a portion of the functional coating to form a coating stack having an emissivity, the protective coating configured to increase the emissivity of the coating stack over the emissivity of the functional coating alone;
- a second ply;
- and
- an interlayer located between the first and second plies, with the protective coating facing the interlayer.
An article, comprising:
- a substrate;
- a functional coating deposited over at least a portion of the substrate;
- and
- a protective coating deposited over the functional coating, wherein the functional coating and the protective coating define a coating stack and the protective coating provides the coating stack with an emissivity higher than the emissivity of the functional coating alone.
A monolithic automotive transparency, comprising:
- a glass substrate;
- a functional coating deposited over at least a portion of the glass substrate;
- and
- a protective coating deposited over the functional coating to form a coating stack, the protective coating comprising aluminum oxide having a thickness in the range of 1 micron to 5 microns and providing the coating stack with an emissivity of at least 0.5.
Dependencies are inferred from the claim text.