Viscosity stable smectite clay slurries and mixtures of...

Details Viscosity stable smectite clay slurries and mixtures of... Viscosity stable smectite clay slurries and mixtures of...

C - Chemistry, Metallurgy

04

B

C04B 35/14 (2006.01) C04B 14/10 (2006.01) C04B 22/00 (2006.01) C04B 24/00 (2006.01) C04B 33/04 (2006.01) C04B 35/622 (2006.01) C04B 40/00 (2006.01) C09C 1/42 (2006.01) C09D 7/00 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2363303

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.

On décrit une boue à base d'argile obtenue à partir d'argile smectique, d'eau et d'un additif de phosphonate hydrolytiquement stables dans le temps. La viscosité de la boue à base d'argile reste coulante et relativement inchangée au fil du temps, par rapport aux boues antérieures. La boue sert à assurer la régulation rhéologique des peintures et des revêtements et est particulièrement utile en tant qu'additif anti-fuite pour le béton.

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