Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1980-12-24

1983-09-20

Edmundson, F.

Compositions

Magnetic

With wax, bitumen, resin, or gum

252 6253, B05D 512

Patent

active

044054815

ABSTRACT:
A magnetic recording medium containing a ferromagnetic powder, a binder and a lubricant is disclosed. The lubricant comprises (1) abrasive particles having a Mohs' hardness of about 6 or more and a particle size of about 5 microns or less and (2) an ester of an aliphatic acid having 20 to 26 carbon atoms and a monovalent alcohol having 1 to 26 carbon atoms.

REFERENCES:
patent: 3704152 (1972-11-01), Hartmann et al.
patent: 4020236 (1977-04-01), Aonuma et al.
patent: 4172176 (1979-10-01), Tanaka et al.
patent: 4247407 (1981-01-01), Naruse et al.

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