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US 11,384,023 B2Granted
Aqueous gelcasting formulation for ceramic products
AssigneeDelta Faucet Company
InventorsKurt J. Thomas, Paul A. V. Bridgett, Michael J. Veros, Joseph A. Elmer, Nathanael W. Dennis
Life of this patent
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Abstract
The present disclosure relates to the manufacture of ceramic products by aqueous gelcasting. Exemplary ceramic products include sanitary ware, such as toilets and sinks. The process includes a slurrying step, a mixing step, a molding step involving aqueous gelcasting, a drying step, a glazing step, and a firing step.
Claims19
A formulation comprising:
- at least one mineral oxide constituting about 10 wt. % to about 88 wt. % of the formulation;
- at least one alkali aluminosilicate mineral separate from the at least one mineral oxide and configured to serve as a fluxing agent to reduce the melting point of the formulation;
- colloidal silica;
- and
- water, wherein the formulation is a slurry capable of flowing into a mold.
2 more elements
A formulation comprising:
- at least one mineral oxide constituting at least about 10 wt. % of the formulation;
- at least one alkali aluminosilicate mineral, separate from the at least one mineral oxide and configured to serve as a fluxing agent to reduce the melting point of the formulation;
- colloidal silica;
- and
- water, wherein the formulation is a slurry and the at least one alkali aluminosilicate mineral constitutes a majority of the slurry.
2 more elements
A formulation comprising:
- 17.8 wt. % silica;
- 17.4 wt. % alumina;
- 56.0 wt % of at least one alkali aluminosilicate mineral, separate from silica and alumina;
- and
- 8.8 wt. % colloidal silica, wherein the formulation is a slurry.
2 more elements
A formulation comprising:
- 12.9 wt. % silica;
- 17.4 wt. % alumina;
- 56.0 wt % of at least one alkali aluminosilicate mineral separate from silica and alumina;
- and
- 13.7 wt. % colloidal silica, wherein the formulation is a slurry.
2 more elements
Dependencies are inferred from the claim text.