Process for producing magnetic powder and product

Details Process for producing magnetic powder and product Process for producing magnetic powder and product

1983-04-05

1985-09-03

Pianalto, Bernard D.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

427127, 4273722, 4273770, 4273833, B32B 316

Patent

active

045392617

ABSTRACT:
A process for producing a magnetic powder which comprises coating the particle surfaces of a magnetic iron oxide with a cobalt compound or a cobalt compound and a ferrous compound and further coating with a compound of at least one metal selected from the group consisting of manganese, vanadium and zinc. There is obtained a magnetic powder having high coercivity and excellent dispersibility in organic binders. This magnetic powder is useful as a material for recording media such as magnetic tapes.

REFERENCES:
patent: 4125474 (1978-11-01), Dezawa et al.

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