Method of dispersing alpha alumina monohydrate
US4244835A · kind A · utility
14Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1978 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Dec 14, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of forming an aqueous dispersion of alpha alumina monohydrate by subjecting a mixture of water and alpha alumina monohydrate to high shear rates. The process is further enhanced by having the mixture contain a small amount of a base selected from a water soluble alkali metal hydroxide, carbonate or oxide. The invention is also directed to a water dispersable alpha alumina monohydrate composition comprising solid particulate alpha alumina monohydrate having from 1 to 5% by weight of an alkali metal oxide, hydroxide or carbonate or ammonium hydroxide substantially uniformly mixed therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.