Polymer composite photonic crystal coatings
US12091570B2 · kind B2 · utility
1Cited by
35References
22Claims
0Family size
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Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Dec 29, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/11
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer composite photonic crystal materials are disclosed as coatings which have high reflection (>30%) in a specific range of the electromagnetic spectrum, such as ultraviolet (<400 nm), visible (Vis, 400 nm-700 nm), or near-infrared radiation range (NIR, 700-2000 nm), and relatively low reflection (<20% reflection) in a second, different range of the electromagnetic spectrum. Surprisingly, it was found that through a formulation and additives approach, the optical properties of polymer composite photonic crystal films can be selectively modified from a variety of different coating methods, including spray deposition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.