Process and composition for slip casting a ceramic powder
US5690724A · kind A · utility
3Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1996 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Sep 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/6365
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process and composition are disclosed for slip casting a ceramic powder in a porous mold. In this invention, a ceramic powder is blended with a polymeric cellulose ether. A slurry of ceramic powder-cellulose ether is formed. A porous mold is coated with a hydrophilic colloid of ammonium alginate to form a treated mold. The slurry is then poured in the treated mold and a slip is formed. This invention is particularly useful for forming crack-free slips made from difficult to cast ceramic powders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.