Photochromic articles containing a polyoxometalate and methods of making same
US9976076B2 · kind B2 · utility
0Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2015 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jun 22, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A photochromic article is provided, containing a polymer and a polyoxometalate and counter cation complex distributed in the polymer. A method of forming a photochromic film is also provided, including forming a composition containing a polymer or a precursor of the polymer and a polyoxometalate and counter cation complex and preparing a film from the composition, the film containing the polyoxometalate and counter cation complex distributed in the polymer. Further, a precursor composition is provided, including a polymer or a precursor of the polymer and a polyoxometalate anion and a counter cation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.