Ferrite powder type magnetic toner used in electrophotography an

Details Ferrite powder type magnetic toner used in electrophotography an Ferrite powder type magnetic toner used in electrophotography an

1979-10-22

1981-08-04

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430109, 430111, 430137, 430903, 430904, 252 6254, 252 6256, 252 626, 252 6262, 252 6264, G03G 900, C04B 3504, C01G 4908, C04B 3526

Patent

active

042823021

ABSTRACT:
A ferrite powder type magnetic toner used in an electrophotography. It comprises a resinous component and a ferrite having a spinel structure comprising components of iron oxide at a ratio of 99.9 to 51 mole % as Fe.sub.2 O.sub.3 and at least one metal oxide selected from the group consisting of manganese oxide, nickel oxide, cobalt oxide, magnesium oxide, copper oxide, zinc oxide and cadmium oxide at a ratio of 0.1 to 49 mole % as MO wherein M represents Ni, Co, Mg, Cu, Zn or Cd.

REFERENCES:
patent: 3563734 (1971-02-01), Shely
patent: 3639245 (1972-02-01), Nelson
patent: 3764313 (1973-10-01), Shely
patent: 3839029 (1974-10-01), Berg
patent: 3914181 (1975-10-01), Berg
patent: 4097392 (1978-06-01), Goldman
P. M. Cassiers and J. Van Engeland, Photographic Science & Engineering, vol. 9, No. 4, Jul.-Aug. 1965, pp. 273-279.
Kirk-Othmer Encyclopedia of Chemical Technology, Third Edition, vol. 8, 1979, pp. 812, 813, 823, 825; vol. 9, 1980, pp. 889-902.
L. B. Schein, Electrophotography, Second International Conference, Society of Photographic Scientists and Engineers, Washington, D.C., 1974, pp. 65-73.
L. B. Schein, Photographic Science & Engineering, vol. 19, No. 5, Sep./Oct. 1975, pp. 255-265

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