Launderable retroreflective applique with improved retention of retroreflective elements
AssigneeMinnesota Mining and Manufacturing Company
InventorWu-Shyong Li
Life of this patent
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Abstract
Retroreflective appliques comprising a monolayer of retroreflective elements partially embedded in and protruding from the front surface of a binder layer and an optional layer of adhesive on the rear surface of the binder layer, wherein the binder layer comprises one or more flexible polymeric binder materials having active hydrogen functionalities and one or more isocyanate-functional silane coupling agents thereon.
Claims21
A retroreflective applique comprising a monolayer of retroreflective elements partially embedded in and protruding from the front surface of a binder layer wherein said binder layer comprises a flexible polymer having active hydrogen functionalities and one or more isocyanate-functional silane coupling agents.
Dependencies are inferred from the claim text.