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US 2018/0003868 A1Published application
Retroreflective articles including optically active areas and optically inactive areas
Assignee3M Innovative Properties Company
InventorsMICHAEL BENTON FREE, MIECZYSLAW H. MAZUREK, BIMAL V. THAKKAR, KENNETH L. SMITH, SUMAN K. PATEL, WILLIAM D. COGGIO, MIKHAIL L. PEKUROVSKY, RAYMOND C. CHIU
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Abstract
This disclosure generally relates to retroreflective articles and methods of making such articles.
Claims21
A retroreflective article, comprising:
- a retroreflective layer including a structured surface that is opposite a major surface;
- a structured adhesive layer including raised areas and unraised areas;
- and
- wherein at least some of the unraised areas further include barrier layers.
1 more element
Dependencies are inferred from the claim text.