Encased retroreflective elements and method for making
US5835271A · kind A · utility
26Cited by
25References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1995 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Jun 29, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/524
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A retroreflective element that exhibits exceptional wet retroreflectivity, and a method of manufacturing the same. The retroreflective element includes an assembly having a multi-sided retroreflector and a clear thermoplastic. In one embodiment, the clear thermoplastic is at least partially thermally deformed to create a convex retroreflective dome for capturing high incident angle light rays. The retroreflective elements may be used in a pavement marking system, such as attached to pavement marking tape or deposited in pavement marking paint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.