Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Fred Whitton0
Wilbur S. Mardis0
Wouter Ijdo0
Date of Patent
August 21, 2007
0Patent Application Number
106206170
Date Filed
July 17, 2003
0Patent Primary Examiner
Patent 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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