Whiteware ceramic compositions
AssigneeBritish Technology Group Limited
InventorsPeter Francis Messer, Ahmet Capoglu, Majid Jafari, Ahmad Fauzi Mohd Noor, Henry Ehibhanre Okojie
Life of this patent
Estimating the term…
Abstract
A whiteware ceramic composition is provided comprising a filler, 4 to 10% by weight of a flux having a median particle size of below 6 microns, a prefired ceramic material milled separately from the other components, and raw clay constituting from 5 to 20% by weight of the composition. Fired whiteware made by firing the composition of the invention is also disclosed.
Claims38
A whiteware ceramic composition comprising
- filler,
- 4 to 10% by weight of a flux having a median particle size of below 6 microns,
- a prefired, milled, ceramic material, and
- raw clay constituting from 5 to 20% by weight of the composition.
A milled fired material comprising as ingredients from 38 to 43% by weight chemically refined aluminum trihydroxide, 34-39% silica, 17-22% calcium carbonate, up to 5% bone ash or magnesium carbonate and 0-2% zinc oxide, wherein anorthite and mullite are present when the material is fired.
Dependencies are inferred from the claim text.