Acicular ferrimagnetic iron oxide and its preparation

Details Acicular ferrimagnetic iron oxide and its preparation Acicular ferrimagnetic iron oxide and its preparation

1983-01-28

1984-07-03

Cooper, Jack

Stock material or miscellaneous articles

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

Particulate matter

252 6256, 252 6259, 427127, 428693, 428694, 428900, C01G 4906

Patent

active

044579829

ABSTRACT:
A modified acicular ferrimagnetic iron oxide which consists of a core of gamma-iron(III) oxide and a surrounding shell of gamma-iron(III) oxide modified by tin dioxide and carbon, and a process for its preparation.

REFERENCES:
patent: 2900236 (1959-08-01), Speed et al.
patent: 3082067 (1963-03-01), Hund
patent: 3498748 (1970-03-01), Gremer
patent: 3903004 (1975-09-01), Matsumoto et al.
patent: 3912646 (1975-10-01), Leitner et al.
patent: 4056410 (1977-11-01), Corradi et al.
patent: 4059716 (1977-11-01), Kopke et al.
patent: 4311684 (1982-01-01), Umeki
patent: 4388360 (1983-06-01), Miyoshi et al.

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