Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1983-10-25
1986-04-22
Robinson, Ellis P.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
427128, 252 6254, 360134, 360135, 360136, 428404, 428405, 428406, 428407, 428694, 428900, G11B 570
Patent
active
045842434
ABSTRACT:
When an abrasive having an oleophilic surface used in a magnetic recording medium obtained by subjecting an inorganic powder having a Mohs hardness of 5 or above and an average particle size of 2 .mu.m across or below to a dry contact treatment with a dispersing agent having an oleophilic group under grinding conditions giving an impact value of 1 G or greater is used in combination with a magnetic powder as a magnetic recording layer of magnetic recording medium, the wear at a magnetic head can be prevented and still characteristics can be improved.
REFERENCES:
patent: 3007807 (1961-11-01), Radocy
patent: 3630910 (1971-12-01), Akashi et al.
patent: 3992558 (1976-11-01), Smith-Johannsen
patent: 4153754 (1979-05-01), Huisman
patent: 4191587 (1980-03-01), Kratel
patent: 4275113 (1981-06-01), Naruse
patent: 4320159 (1982-03-01), Ogawa
patent: 4330600 (1982-05-01), Kawasumi
patent: 4334887 (1982-06-01), Frank
patent: 4379809 (1983-04-01), Matsufuji
Kadokura Hidekimi
Murakami Hideaki
Umezaki Hiroshi
Robinson Ellis P.
Sumitomo Chemical Company Limited
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