Thermostable iron oxide pigments

Details Thermostable iron oxide pigments Thermostable iron oxide pigments

1983-03-16

1985-01-01

Herbert, Thomas J.

Stock material or miscellaneous articles

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

Particulate matter

106304, 106308B, 428900, B32B 516

Patent

active

044916191

ABSTRACT:
Iron oxide particles containing at least 5% by weight of iron (II) content calculated as FeO are stabilized against atmospheric oxidation by a coating of at least one compound containing boron and those particles are useful as coloring pigments and magnetic particles in magnetic recording media.

REFERENCES:
patent: 2357721 (1944-09-01), Allan
patent: 3991240 (1976-11-01), Harrington et al.
patent: 4145229 (1979-03-01), Ferrero et al.
patent: 4175158 (1979-11-01), Saunders
patent: 4321301 (1982-03-01), Brichard et al.
4029 World Surface Coating Abstracts, vol. 54, Jan. 1981, No. 463, Old Woking, Surrey, Gr. Britain, Abstract No. 81/0017.

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