Composition of magnetic recording media

Details Composition of magnetic recording media Composition of magnetic recording media

1979-10-12

1980-12-09

Cooper, Jack

Compositions

Magnetic

With wax, bitumen, resin, or gum

252 6258, 427128, 428329, 428413, 428506, 428900, H01F 1113

Patent

active

042383412

ABSTRACT:
A composition of magnetic recording media consisting of a ferromagnetic powder such as .gamma.-Fe.sub.2 O.sub.3, a binder and single crystal alumina as a reinforcing agent. Single crystal .alpha.-alumina is preferably used as said single crystal alumina and its amount is preferably from 1 to 20% by weight based on the magnetic powder.

REFERENCES:
patent: 3622386 (1971-11-01), Larsen
patent: 3843404 (1974-10-01), Haefele et al.
patent: 3929658 (1975-12-01), Beske
patent: 3955037 (1976-05-01), Marx et al.
patent: 4015042 (1977-03-01), Chassaigne
patent: 4070522 (1978-01-01), Ogasa et al.
patent: 4074002 (1978-02-01), Hack et al.

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