Ultra-flexible retroreflective sheeting with coated back surface
US5784197A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Apr 1, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A retroreflective article comprising an ultra-flexible structured retroreflective sheeting having a front surface and a back surface, the sheeting retroreflecting light entering through the front surface, wherein the sheeting comprises an overlay film, a two-dimensional array of substantially independent structured elements, the structured elements bonded to the overlay film, and a sealing film forming the back surface of the sheeting and bonded to the overlay film between the structured elements; a plurality of indentations in the sealing film; and a seal coat located on the sealing film, wherein the seal coat at least partially fills the indentations in the sealing film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.