Magnetic recording medium

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...

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252 6254, 427128, 428694, 428695, 428900, G11B 571, G11B 5714, G11B 5708

Patent

active

046542582

ABSTRACT:
A magnetic recording medium is described, comprising a non-magnetic support having provided thereon a magnetic layer containing ferromagnetic particles, a binder, non-magnetic particles, and lubricating agents, wherein said magnetic layer contains (i) carbon black (A) having an average particle size of 25 m.mu. or less and a BET specific surface area of from 150 to 250 m.sup.2 /g and carbon black (B) having an average particle size of from 10 to 30 m.mu. and a BET specific surface area of 700 m.sup.2 /g or more, and (ii) a fatty acid ester and a fatty acid amide in a total amount of 7 wt % or more based on the weight of the ferromagnetic particles.

REFERENCES:
patent: 3630910 (1971-12-01), Akashi et al.
patent: 4474848 (1984-10-01), Yamaguchi et al.
patent: 4546038 (1985-10-01), Yamaguchi et al.

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