Window films with reflective organic and metal layers
US8730571B2 · kind B2 · utility
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8References
22Claims
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Key dates
| Filing date | Mar 21, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2419/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system and method for windows films having one or more layers incorporating an organic free radical compound, wherein the layers reflect in the infrared region, and one or more layers of a multilayer interference stack of a metal/metal or metal/metal oxide design. Preferably, the organic free radical compound is a salt of an aminium radical cation. One or more layers of the multilayer interference stack may incorporate an aminium radical cation compound. Also provided are security windows that utilize such window films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.