Conformable color shifting laminates
US11752729B2 · kind B2 · utility
0Cited by
19References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 15, 2019 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Feb 12, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0866
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A stretchable reflective color-shifting film comprises a stretchable transparent polymer layer; a semi-transmissive metal layer; a transparent spacer layer; a reflective metal layer; an adhesive layer; and a stretchable base film layer. When the film body is stretched by 25%, the peak total reflectance stretched is at 80% of the peak total reflectance when the film body is unstretched according to the Total Reflectivity Test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.