Substantially transparent substrates including high and low emissivity coating layers
US11286199B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 1, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A treated substrate includes a low emissivity coating layer disposed on a substrate and a high emissivity coating layer disposed on the low emissivity coating layer. The low emissivity coating layer is formed a low emissivity coating composition including silver, or indium tin oxide, or fluorine-doped tin oxide, while the high emissivity coating layer is formed from a high emissivity coating composition including a carbon-doped silicon oxide. The treated substrate has an emissivity of from 0.7 to less than 1.0 at wavelengths ranging from 8 micrometers to 13 micrometers and has an emissivity of greater than 0 to 0.3 at wavelengths less than 6 micrometers. The treated substrate also maintains a visually acceptable mechanical brush durability resistance for at least 150 test cycles tested in accordance with ASTM D2486-17.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.