Magnetic recording medium having improved running properties

Details Magnetic recording medium having improved running properties Magnetic recording medium having improved running properties

1984-04-09

1986-09-30

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428329, 428694, 428900, B32B 516

Patent

active

046146857

ABSTRACT:
A magnetic recording medium comprised of a non-magnetic support base having a magnetic layer provided thereon is disclosed. The magnetic layer is comprised of carbon black having an average particle size of 30 to 50 m.mu. and an iron oxide which contains Co. The iron oxide containing the Co has a specific surface area of 25 m.sup.2 /g or more. The carbon black and the iron oxide containing the Co are dispersed in a binder. By utilizing the particular type of carbon black in combination with the particular iron oxide containing Co in the magnetic layer it is possible to greatly improve the running characteristics of the magnetic recording medium as well as obtain an improved RF output.

REFERENCES:
patent: 4364988 (1982-12-01), Andoh et al.
patent: 4439486 (1984-03-01), Yamada et al.
patent: 4455345 (1984-06-01), Miyatuka et al.
patent: 4465737 (1984-08-01), Miyatuka et al.
patent: 4539257 (1985-09-01), Ryoke et al.
patent: 4546038 (1985-10-01), Yamaguchi et al.

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