Luminescent markings
US10927516B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2016 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Sep 19, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/60
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Reflective luminescent markings on a road or sign surface are formed by applying onto the surface a base material which is liquid in an initial state for application and sets or cures to form a solid layer after application where the base material contains a fine/medium filler material of glass ground from recycled materials in a rotary mill. Coarse material from the grinder is separated out and supplied as a separate material to be applied onto the surface of the layer of base material and fine ground glass. The base material is connected or impregnated with a luminescent material such as photo luminescent 2 4 6 trichlorophenyl in a binder such as polyurea.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.