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US 6,555,213 B1Granted
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.
Claims19
An image retaining card, comprising:
- a substrate structure comprising polyolefin or copolymers thereof;
- a cover;
- and
- an image receptive material disposed between the cover and the substrate structure, wherein the image receptive material is porous.
1 more element
An image retaining card, comprising:
- a substrate structure including a substrate base layer and a substrate tie layer overlaying the substrate base layer;
- the substrate base layer comprising polypropylene;
- the substrate tie layer comprising functionalized polyolefin;
- a cover;
- and
- an image receptive material disposed between the cover and the substrate structure, wherein the image receptive material is porous.
3 more elements
Dependencies are inferred from the claim text.