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US 9,809,494 B2Granted
Magnesium phosphate cement
AssigneePremier Magnesia, LLC
InventorsJerry E. Rademan, Claudio Manissero, John K. Gehret, Mark A. Shand, James Preskenis
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Abstract
Magnesium phosphate cement binder systems and method for providing magnesium phosphate cements are described. In an embodiment, a magnesium phosphate cement binder system may include magnesium oxide that has been calcined at a temperature of between about 900° F. to about 1800° F. The magnesium phosphate cement binder system may also include a phosphate material. Other formulations, compositions, and methods are also described.
Claims19
A method of making a magnesium phosphate cement comprising:
- providing magnesium oxide calcined to exhibit a caustic magnesia activity neutralization time of between about 9 seconds to about 30 seconds using a 1.0N acetic acid and a magnesium oxide content of between about 10% to about 100%;
- providing a phosphate material;
- combining the magnesium oxide and the phosphate material;
- and
- hydrating the combined magnesium oxide and phosphate material.
2 more elements
Dependencies are inferred from the claim text.