Skid-resistant pavement markings
US4937127A · kind A · utility
40Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Sep 7, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- 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.