Magnetic recording composition employing mono-dispersed spherica

Details Magnetic recording composition employing mono-dispersed spherica Magnetic recording composition employing mono-dispersed spherica

1981-05-29

1984-05-29

Pianalto, Bernard D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428694, 428900, H01F 1002

Patent

active

044515324

ABSTRACT:
A magnetic recording composition contains load-bearing particles which consist of a monodispersion of spherical particles distributed throughout the coating. The spherical particles have a diameter somewhat in excess of the finished coating thickness so as to extend above the coating.

REFERENCES:
patent: Re28866 (1976-06-01), Haefele et al.
patent: 3622386 (1971-11-01), Larsen
patent: 3630910 (1971-12-01), Akashi et al.
W. B. Scott and E. Matijevic, "Aluminum Hydrous Oxide Sols" Journal of Colloid and Interface Science, vol. 66, No. 3, 10-1-78, pp. 447-454.
D. A. Nepela, "Control of Extra Bits (Errors) in Recording Media Containing Load-Bearing Particles" IBM TDB, vol. 23, No. 1 6-80, p. 296.

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