Method of making pavement markings having raised protuberances
US6326053A · kind A · utility
14Cited by
27References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Jun 29, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/109
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Retroreflective article (10), e.g., in the form of a pavement marking, having raised, nonintegral protuberances (16) that exhibit good dry retroreflectivity and recover retroreflectivity quickly after exposure to water. The protuberance comprise a thermoplastic polymer body. Partially embedded in the protuberance are optical elements (14) which are in optical association with a light scattering agent. The protuberance is disposed on top of a conformable base sheet (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.