Magnetic composition, magnetic toner and ink containing the magn

Details Magnetic composition, magnetic toner and ink containing the magn Magnetic composition, magnetic toner and ink containing the magn

1995-12-07

1997-01-28

Le, Hoa Van

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20B, 106 21A, 106 23B, 106 23K, 106 30C, 106311, C09D 1100

Patent

active

055974058

ABSTRACT:
A magnetic composition contains an alkali-metal-doped tetraazaporphyrin derivative which is prepared by doping a tetraazaporphyrin derivative of formula (I) with an alkali metal, or an alkali-metal-doped porphyrin derivative which is prepared by doping porphyrin derivative of formula (II) with an alkali metal: ##STR1## wherein M represents at least one metal or a plurality of metals; and A represents two individual hydrogen atoms, or a condensation substituent. A magnetic toner and a magnetic ink contain the above magnetic composition as the magnetic component thereof.

REFERENCES:
patent: 4401470 (1983-08-01), Bridger
patent: 4563301 (1986-01-01), Marks et al.
patent: 4973391 (1990-11-01), Madou et al.
patent: 5281261 (1994-01-01), Lin

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