Encapsulated retroreflective elements and method for making same
AssigneeMinnesota Mining and Manufacturing Company
InventorsGeoffrey P. Morris, Kenton D. Budd
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Abstract
Encapsulated retroreflective element comprising a retroreflective assembly made up of a transparent optical body and a reflective member and essentially completely encapsulated within a dense, substantially transparent oxide coating. Also a method for making such retroreflective elements and articles and compositions comprising such retroreflective elements.
Claims19
An encapsulated retroreflective element comprising a retroreflective assembly that comprises a transparent optical body and a reflective member wherein said retroreflective assembly is essentially completely encapsulated within a dense substantially transparent oxide coating.
Dependencies are inferred from the claim text.