High-strength, light-weight, fired clay body and method of producing same
US4089920A · kind A · utility
1Cited by
3References
8Claims
0Family size
Inventors
Key dates
| Filing date | Dec 14, 1970 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Dec 14, 1990 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B33/32
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high-strength, light-weight, fired clay body which is characterized by relatively greater surface oxidation than interior oxidation with accompanying surface layer shrinkage. The clay body is quick-dried and quick-fired to substantially uniformly oxidize the surface layer to maturity while maintaining the interior of the body in a relatively unoxidized and unfired condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.