Flushed pigment and a method for making the same

Details Flushed pigment and a method for making the same Flushed pigment and a method for making the same

1990-05-08

1992-04-28

Dixon, Jr., William R.

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106410, 106497, 106500, 106504, C08K 500

Patent

active

051085097

ABSTRACT:
A pigment is formed in an aqueous slurry. A mixture of the pigmented slurry and a vehicle is subjected to high speed, high shear mixing action. The water is forced out of the solid pigment and replaced by the vehicle forming bead-like spherical conglomerates. The conglomerates grow into clusters in the dispersing phase during the mixing process. The clusters are filtered from the dispersing water phase forming a flushed pigment which is used for dispersion in ink systems.

REFERENCES:
patent: 3844811 (1974-10-01), Brynko
patent: 3980488 (1976-09-01), Barrington et al.
patent: 4194921 (1980-03-01), Wheeler et al.
patent: 4309223 (1982-01-01), Rouwhorst et al.
patent: 4747882 (1988-05-01), Schwartz et al.
patent: 4765841 (1988-08-01), Vinther et al.

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