Data card with peelable protective layers

Details Data card with peelable protective layers Data card with peelable protective layers

1986-05-02

1988-04-12

Yost, Frank T.

Printed matter

Method

Fingerprint

428 40, 428900, 3461351, B42D 1500, B32B 500, B32B 300, G01D 900

Patent

active

047369663

ABSTRACT:
An optical data storage medium, such as a data card with a strip of optical data storage material, having peelable transparent protective layers adhered above the storage material. When a protective layer becomes too scratched to read or write through, it may be removed by peeling. More than one layer may be adhered successively above one another, and removed one by one as they become scratched. The peelable protective layers are preferably adhesive tapes made of Aclar, Mylar, polyester, or other hard-to-tear polymers with pressure sensitive adhesive. One or more of the layers, and an underlayer between substrate or card base and the storage material may be a water barrier material such as a polytrichlorofluoroethylene.

REFERENCES:
patent: 3664910 (1972-05-01), Hollie
patent: 4310137 (1982-01-01), Frye
patent: 4339485 (1982-07-01), Shibano et al.
patent: 4360728 (1982-11-01), Drexler
patent: 4370391 (1983-01-01), Mori
patent: 4479838 (1984-10-01), Dunsirn et al.
patent: 4525412 (1985-06-01), Makane et al.

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