Black coloring agent

Details Black coloring agent Black coloring agent

1975-05-02

1976-11-16

Douglas, Winston A.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

423445, 423449, C09C 148

Patent

active

039922189

ABSTRACT:
A carbon black coloring agent is obtained by (1) mixing a hydrophobic vehicle with an aqueous slurry containing a carbon black obtained by treating a furnace black having an electromicroscopic average particle size of from about 5 to about 35 m.mu. with a modifier selected from the group consisting of ozone, nitric acid, hydrogen peroxide, chromic acid and permanganate, and (2) removing the water.

REFERENCES:
patent: 3301694 (1967-01-01), Kraus et al.
patent: 3565657 (1971-02-01), Dannenberg et al.

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