Retroreflective article comprising multiple locally-laminated layers
US12228755B2 · kind B2 · utility
0Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2020 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Feb 27, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/288
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A retroreflective article comprises a binder layer and a plurality of retroreflective elements, each retroreflective element comprising a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements comprise a first locally laminated layer and a second locally laminated layer that may be reflective layers. A transfer article comprises a disposable carrier layer in which the retroreflective article is detachably disposed with at least some of the transparent microspheres in contact with the disposable carrier layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.