Material comprising a substrate provided with a stack of thin layers having thermal properties
US11390559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Oct 23, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/156
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A material includes a transparent substrate coated with a stack of thin layers successively including an alternation of three silver-based functional metal layers and of four dielectric coatings so that each functional metal layer is positioned between two dielectric coatings. Absorbent material is present between the first functional layer and the second functional layer, in a total thickness Abs2 such that 1.0≤Abs2≤5.0 nm and/or absorbent material is present between the second functional layer and the third functional layer, in a total thickness Abs3 such that 1.0≤Abs3≤5.0 nm. Additionally, absorbent material is present between the face of the substrate and the first functional layer in a total thickness such that 0.0<Abs1≤0.5 nm and absorbent material is present above the third functional layer, in a total thickness Abs4 such that 0.0<Abs4≤0.5 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.