Viscosity stable smectite clay slurries

Details Viscosity stable smectite clay slurries Viscosity stable smectite clay slurries

2007-08-21

2007-08-21

Marcheschi, Michael (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

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

C106S486000, C106S468000, C423S332000

Reexamination Certificate

active

10620617

ABSTRACT:
A clay slurry is described using smectite clay, water, and a defined phosphonate additive that is hydrolytically stable over time. The viscosity of the clay slurry remains pourable and relatively unchanged over time compared to prior art slurries. The slurry is useful to provide rheological control to paints and coatings and is particularly useful as an anti-bleed additive for concrete.

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