Stabilization of magnetite pigments with heterocyclic nitrogen c

Details Stabilization of magnetite pigments with heterocyclic nitrogen c Stabilization of magnetite pigments with heterocyclic nitrogen c

1978-09-21

1981-04-28

Edmundson, F.

Compositions

Magnetic

With wax, bitumen, resin, or gum

427220, 4272556, H01F 136, B05D 500

Patent

active

042644623

ABSTRACT:
A finely divided magnetite pigment such as is used in magnetic tapes is stabilized against oxidation by contact with a heterocyclic nitrogen compound such as morpholine, triazole, piperazine or substitution products thereof. The heterocyclic compound can be applied as a solution or in vapor form.

REFERENCES:
patent: 2914424 (1959-11-01), Murray
patent: 3795539 (1974-03-01), Dimino
patent: 3852069 (1974-12-01), Van Paeschen et al.
patent: 4073977 (1978-02-01), Koester et al.

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