Magnetic iron oxide particles

Details Magnetic iron oxide particles Magnetic iron oxide particles

1990-04-10

1992-06-23

Cooper, Jack

Stock material or miscellaneous articles

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

Particulate matter

252 6258, 252 6259, 252 6262, 252 6263, 252 6264, C04B 3526

Patent

active

051242079

ABSTRACT:
Disclosed herein is a magnetic iron oxide particle comprising a magnetic iron oxide core particle containing ferrous iron, a Zn compound layer as a lower coating layer on the surface of said core particle, and an Si compound layer as an upper coating layer thereon.

REFERENCES:
patent: 4082905 (1978-04-01), Stephan et al.
patent: 4259368 (1981-03-01), Rudolf et al.
patent: 4956220 (1990-09-01), Sueyoshi et al.

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