Powder for dry refractory material
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United States of America Patent
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Dec 2, 2014
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Dec 23, 2010
filing date -
Dec 24, 2009
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Abstract
The invention relates to a powder comprising more than 70% of refractory particles, in weight percent relative to the weight of the powder, a particle of said powder being classed in the fraction called “matrix” or in the fraction called “aggregate”, according to whether it is smaller than, or equal to 100 μm, or larger than 100 μm, respectively, said powder comprising, in weight percent relative to the weight of the powder: between 0.1% and 18% of particles of a heat-activatable binder, called “heat-activatable binder particles”; and more than 40% of refractory particles, called “ATZ particles”, having the following chemical composition, in weight percentages on the basis of the oxides of said ATZ particles: 10%≦Al2O3≦55%; 35%≦TiO2≦80%; 1%≦MgO+Cr2O3≦10%; 8%≦ZrO2≦20%; SiO2≦8%.
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