Agent for pre-treatment of rough mineral materials for pigmentar

Details Agent for pre-treatment of rough mineral materials for pigmentar Agent for pre-treatment of rough mineral materials for pigmentar

1988-01-28

1989-06-27

Lieberman, Paul

Compositions: coating or plastic

Materials or ingredients

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

106499, 524445, 524446, 524447, 523209, C04B 1410

Patent

active

048426512

ABSTRACT:
A pre-treatment of rough pigmentary mineral materials to eliminate the viscosifying effect of the swelling clays present in said materials used to condition said materials before refining them in an aqueous medium by abrasion or grinding. The method enables the production of refined pigmentary suspensions with a concentration of at least 75% by weight and low viscosity and stable over time. The pre-treatment agent is comprised of acid polymers and/or copolymers containing at least one carboxylate ethylenic monomer. Suspensions with high concentration of pigmentary mineral materials are prepared from the conditioned materials.

REFERENCES:
patent: 3896065 (1975-07-01), Reardon et al.
patent: 4554307 (1985-11-01), Farrar et al.

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