Back to results
US 8,709,149 B2Granted
Hydraulic cements, methods and products
AssigneeOssdsign AB
InventorsH{dot over (a)}kan Engqvist, Jonas Aberg
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeOssdsign AB
InventorsH{dot over (a)}kan Engqvist, Jonas Aberg
Estimating the term…
Non-aqueous hydraulic cement compositions comprise a non-aqueous mixture of a powder composition and a non-aqueous water-miscible liquid. In one embodiment, powder composition is a Brushite or Monetite-forming calcium phosphate powder composition. In another embodiment, the powder composition comprises porous β-tricalcium phosphate (β-TCP) granules and at least one additional calcium phosphate powder. In another embodiment, the powder composition comprises calcium silicate powder. In a further embodiment, the powder composition comprises calcium aluminate powder. In another embodiment, the powder composition is a cement composition and comprises nanopowders having a grain size of less than 1 micron. Hardened cements are formed from such hydraulic cement compositions, and methods of producing hardened cements, kits, and articles of manufacture employ such hydraulic cement compositions.
A non-aqueous, hydraulic cement composition, comprising a non-aqueous mixture of (a) a non-hydrated Brushite- or Monetite-cement forming powder composition having a setting pH of less than 6.0 and comprising porous β-tricalcium phosphate (β-TCP) granules and at least one additional calcium phosphate powder selected from the group consisting of monocalcium phosphate monohydrate, anhydrous monocalcium phosphate, and a mixture thereof, and (b) non-aqueous water-miscible liquid.
A non-aqueous, hydraulic cement composition, comprising a non-aqueous mixture of (a) a non-hydrated Brushite- or Monetite-cement forming powder composition having a setting pH of less than 6.0 and comprising porous β-tricalcium phosphate (β-TCP) granules and at least one additional calcium phosphate powder selected from the group consisting of monocalcium phosphate monohydrate, anhydrous monocalcium phosphate, and a mixture thereof, wherein the weight ratio of porous β-TCP granules to the additional calcium phosphate powder is in a range about 1:3 to about 3:1, and (b) non-aqueous water-miscible liquid comprising glycerol, wherein the weight to volume ratio of the powder composition to the non-aqueous water-miscible liquid is in a range of about 2.5:1 to about 5:1.
Dependencies are inferred from the claim text.