Low viscosity milk of lime
AssigneeS.A. Lhoist Recherche et Developpment
InventorsRobert S. Gärtner, Deborah A. Ballard, Kirsten Ballard
Life of this patent
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Abstract
Low viscosity milk of lime comprising fine lime particles in suspension in an aqueous phase containing at least a first polymer dispersant and a second dispersant being either sodium gluconate or gluconic acid, mixture of sugar containing at least glucose and fructose, said low viscosity milk of lime showing a stable viscosity over 28 days lower than or equal to 600 mPa·s, preferably equal to or lower than 300 mPa·s.
Claims9
Low viscosity milk of lime comprising fine lime particles in suspension in an aqueous phase containing at least a first dispersant and a second dispersant, said fine lime particles having a particle size distribution with a characteristic diameter d25 equal to or lower than 2 μm as measured by laser diffraction with methanol as carrier solvent, said milk of lime containing a fine lime particles content comprised between 30 and 75 wt %, wherein the first dispersant is a dispersant polymer present at an amount of 0.03 to 0.24 wt % non-volatile matter, with respect to the solid matter content of the low viscosity milk of lime, and wherein the second dispersant is present at an amount of 0.10 to 1.0 wt % non-volatile matter with respect to the total weight of the low viscosity milk of lime and comprises either
- (i) sodium gluconate or gluconic acid,
- (ii) a mixture of sugar containing at least glucose and fructose,
- (iii) xylitol,
- wherein said first dispersant and said second dispersant are present together at an amount comprised between 0.11 and 1.15 wt % non-volatile matter with respect to the total weight of the low viscosity milk of lime, said low viscosity milk of lime showing a stable viscosity over 28 days lower than or equal to 600 mPa·s as measured by a Brookfield DV III Rheometer”, with the suitable spindle according to the observed torque or viscosity, typically LV spindle No. 3 at 100 rpm with the measurement taken on the 30th second after the rheometer motor was turned on.
Dependencies are inferred from the claim text.