Preprinted retroreflective highway sign and method for making the sign
US5310436A · kind A · utility
20Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Aug 7, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A retroreflective unitary laminate material having an acrylic layer on which a sign legend is printed and which is covered by an ultraviolet absorbent overlay that has poor affinity for paint and low surface tension thus protecting the printed sign from deterioration due to weathering and enabling the sign to be readily cleansed without damaging the printed signs, and minimizing water beading on the sign front face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.