Exposed lens retroreflective article having a polymeric intermediate layer disposed between microspheric and reflective layers
US5812317A · kind A · utility
50Cited by
14References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1995 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Oct 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/252
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An exposed lens retroreflective article 10 has in sequence a layer of microspheres 12, a polymeric intermediate layer 18, a metal reflective layer 16, and a polymeric binder layer 14. Microspheres 12 are partially embedded in the binder layer 14, and the intermediate layer 18 and the metal reflective layer 16 are disposed between the microspheres 12 and the binder layer 14 such that the intermediate layer 18 is in contact with microspheres 12. Retroreflective articles of this construction provide improved laundering durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.