Retroreflective coating and method for applying a retroreflective coating on a structure
US8840956B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2008 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Mar 26, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A quantity of retroreflective granules includes glass members each having a refractive index of at least about 1.5. The quantity of retroreflective granules can be partially embedded into a binder material applied on the surface of a structure to provide a visual aid. A structure includes a retroreflective surface having an inclined face defined on at least a portion of the structure. The retroreflective surface also includes a binder material applied to at least a portion of the inclined face of the structure. The binder material has a thickness dimension of at least about 10 mil. The retroreflective surface further includes a plurality of retroreflective granules partially embedded in the binder material. The plurality of retroreflective granules have a density of at least about 0.06 pounds/square foot as embedded in the binder material. Each retroreflective granule includes a glass member having a refractive index of at least about 1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.