Skid-resistant pavement markings
US5053253A · kind A · utility
37Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Jan 22, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/512
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A skid-resistant pavement marking sheet including a top surface and a plurality of skid-resistant ceramic spheroids embedded in and protruding from the surface. The ceramic spheroids are fired from a raw material mixture including 10-97 wt. % mineral particulates, 3-90 wt. % alumina, and at least 1 wt. % binder, at a temperature of about 1300.degree. C., have an outer surface rich in alumina concentration relative to the center of the spheroid, and are resistant to crushing and fracturing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.