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US 10,793,471 B2Granted
Composition based on calcium oxide
AssigneeSika Technology AG
InventorsChristian Bürge, Gilbert Mäder, Franz Wombacher
Life of this patent
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Abstract
A composition, in particular a setting accelerator for mineral binders, containing or being made of: a) calcium oxide in the particle form; b) an inhibitor for the reaction of calcium oxide with water and c) optionally water.
Claims17
A composition comprising:
- a) calcium oxide in particle form,
- b) an inhibitor for the reaction of calcium oxide with water and
- c) water;
- wherein
- the composition is present as a slurry or suspension and contains based on the total weight of the composition:
- 25-75% by weight of the calcium oxide;
- 0.5-10% by weight of the inhibitor, the inhibitor being a phosphoric acid ester of a polyhydric alcohol;
- and
- 25-75% by weight of the water.
6 more elements
A method comprising:
- adding a phosphoric acid ester of a polyhydric alcohol to a composition containing calcium oxide in particle form and water, the phosphoric acid ester being added in an amount effective to stabilize the composition and/or inhibit the reaction of calcium oxide with water;
- wherein
- the addition of the effective amount of phosphoric acid ester results in a composition that is present as slurry or suspension and contains based on the total weight of the composition:
- 25-75% by weight of the calcium oxide;
- 0.5-10% by weight of the phosphoric acid ester;
- and
- 25-75% by weight of the water.
4 more elements
Dependencies are inferred from the claim text.