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US 6,905,742 B2Granted
Polypropylene card construction
Assignee3M Innovative Properties Company
InventorsNagraj Koneripalli, Mark F. Schulz, Lori P. Engle, James M. Jonza
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Abstract
An image retaining card is disclosed. An image retaining card in accordance with the present invention may be utilized as an identification card, a driver's license, a passport, and the like. An image retaining card in accordance with the present invention comprises a substrate structure, a cover, and an image receptive material disposed between the substrate structure and the cover. The substrate structure comprises a substrate layer and a substrate tie layer.
Claims18
An image retaining card, comprising:
- a cover defining a first surface and a plurality of projections extending beyond the first surface, the projections defining a second surface of the cover;
- an image receptive material disposed on the first surface of the cover, the image receptive material being disposed between the projections;
- and
- a substrate structure comprising polyolefin or copolymers thereof overlaying the second surface of the cover.
1 more element
Dependencies are inferred from the claim text.