Retroreflective sheeting adapted to be bonded to vulcanizable or curable substrate
AssigneeMinnesota Mining and Manufacturing Company
InventorChester A. Bacon, Jr.
Life of this patent
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Abstract
A retroreflective sheeting comprising a monolayer of retroreflective elements partially embedded in an elastomeric support layer and protruding from the front side of the support layer, and an omni-directionally elastic filamentary reinforcing web at least partially embedded in the rear portion of the support layer, wherein at least the back stratum of the support layer is a vulcanizable or curable elastomer. The back stratum comprises an elastomer which is compatible with the desired substrate. The reinforcing web is typically a knit or nonwoven web. The support layer may be monolayer, dual-layer or multi-layer.
Claims23
A retroreflective sheeting comprising a monolayer of retroreflective elements partially embedded in an elastomeric support layer and protruding from the front side of said support layer, and an omni-directionally elastic filamentary reinforcing web at least partially embedded in the rear portion of said support layer, wherein at least the back stratum of said support layer is a vulcanizable or curable elastomer which forms a strong bond to rubber when simultaneously cured with rubber.
Dependencies are inferred from the claim text.