Iron oxide pigment suspensions and slurries

Details Iron oxide pigment suspensions and slurries Iron oxide pigment suspensions and slurries

1986-10-29

1988-05-03

Lieberman, Paul

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106306, 106308R, C04B 1400

Patent

active

047417811

ABSTRACT:
Iron oxide slurries and suspensions are made from water, iron oxide pigments and a dispersing agent which is water soluble salt of citric acid or tartaric acid. The preferred dispersing agents are the ammonium, sodium and potassium salts of citric acid and tartaric acid. The sodium salts of citric acid are particularly preferred. A known additive such as a fungicide may be included. To keep the slurries and suspension from settling, stabilizing agents may also be included.

REFERENCES:
patent: 3619227 (1968-07-01), Tomkinson
patent: 3663284 (1972-05-01), Stancloff et al.
patent: 4201762 (1980-05-01), Daly
patent: 4204876 (1980-05-01), Bowden
patent: 4374677 (1983-02-01), Senda et al.
patent: 4569920 (1986-02-01), Smith-Johannsen
patent: 4618375 (1986-10-01), Patel et al.

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