Magnetic barrier paper

Details Magnetic barrier paper Magnetic barrier paper

1989-03-10

1990-08-14

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

Electrical or magnetic product characteristic

1621811, 206444, 428900, D21H 1336

Patent

active

049484630

ABSTRACT:
Provided by the present invention is a novel magnetic barrier paper comprised of low hysteresis iron powder. Preferably, the iron powder employed has a hysteresis value of not more than about 5 parts per thousand. The magnetic barrier paper of the present invention is particularly applicable to the protection of floppy disks, as well as electronic components, from stray magnetic fields.

REFERENCES:
patent: 1514406 (1924-11-01), Taylor
patent: 2400544 (1946-05-01), Kline et al.
patent: 4234378 (1980-11-01), Iwasaki et al.
patent: 4774272 (1988-09-01), Camphere et al.

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