Coated substrate with high reflectance
US6423414B1 · kind B1 · utility
11Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1999 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Nov 22, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C17/3681
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A transparent coated substrate with high reflectance, especially for use as in exterior glazing panels for buildings, is provided by a substrate carrying a coating stack comprising a pyrolytically-formed main layer containing oxides of tin and antimony, in which the main layer has a geometric thickness of at least 250 nm and the stack includes an outer reflective layer having a geometric thickness in the range 30 to 150 nm and a refractive index in the range 2.0 to 2.8, whereby the so-coated substrate has a reflectance (RL) of more than 10%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.