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US 2003/0170425 A1Published application
Security laminate
Assignee3M Innovative Properties Company
InventorsGraeme R. Mann, Brian W. Dunne, Paul D. Graham, Thomas Junck, Mark F. Schulz
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Abstract
In one aspect, the invention provides a security laminate comprising a retroreflective layer comprising a plurality of retroreflective microbeads partially embedded in and protruding from a beadbond layer and having image receptive material disposed around the protruding microspheres. In another embodiment, the security laminate further comprises indicia patterns viewable in retroreflective light. In another embodiment, the security laminate is imaged on the image receptive material.
Claims17
A transparent or translucent security laminate comprising:
- a retroreflective layer comprising a plurality of retroreflective microbeads partially embedded in and protruding from a beadbond and having image receptive material disposed around the protruding microbeads in a manner such that the microbeads remain retroreflective.
Dependencies are inferred from the claim text.