Claims
- 1. An article carrying on a surface of the article a coating that comprises a transparent binder film and retroreflective platelet particles dispersed in said film; said platelet particles comprising flat segments cut from a larger retroreflective sheeting; the shortest dimension of a face of the segments averaging at least about one-and-one-half times the thickness of the segments and the segments including a monolayer of retroreflective elements optically exposed over at least one face of the segments; the index of refraction of said binder film being such that said segments retroreflect light incident on the film.
- 2. A coated article of claim 1 in which the article coated is a helmet.
- 3. A coated article of claim 1 in which said segments are cut from sheeting that comprises two retroreflective sheetings laminated back-to-back so that said segments have a monolayer of retroreflective elements optically exposed over both large-area faces of the segment.
- 4. A coated article of claim 3 in which the article coated is a helmet.
- 5. A coated article of claim 1 in which said monolayer of retroreflective elements comprises a monolayer of transparent microspheres covered by a flat exterior transparent cover layer.
- 6. A coated article of claim 5 in which the article coated is a helmet.
BACKGROUND OF THE INVENTION
This a continuation of application Ser. No. 743,889, filed Nov. 22, 1976 now abandoned, which itself was a division of application Ser. No. 592,744, filed July 2, 1975 and now issued as U.S. Pat. No. 4,004,930.
US Referenced Citations (10)
Divisions (1)
|
Number |
Date |
Country |
Parent |
592744 |
Jul 1975 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
743889 |
Nov 1976 |
|