Low-E glass coating system and insulating glass units made therefrom
US5514476A · kind A · utility
204Cited by
32References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Dec 15, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12597
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sputter-coated glass layer system particularly useful in insulating glass units ("IGs"), which includes a single layer of silver having a thickness of about 115 .ANG. -190 .ANG. located between two layers of nickel or nichrome having a thickness of 7 .ANG. or less, and provided with an undercoat and an overcoat of Si.sub.3 N.sub.4 having thicknesses of about 450 .ANG.-600 .ANG. and about 580 .ANG.-800 .ANG. respectively, such that a glass so coated achieves normal emissivity values (E.sub.n 's) of less than about 0.07 and good durability without acquiring a mirror-like and highly purple appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.