Co-dried aluminum oxyhydroxides
US5558858A · kind A · utility
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14References
13Claims
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Key dates
| Filing date | Sep 17, 1990 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Sep 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01F7/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Adsorptive, protein-binding aluminum oxyhydroxides are prepared by mixing carbonate-free, highly hydrated, aluminum oxyhydroxide containing aqueous suspensions with water soluble additives that furnish coordinating moieties with the aluminum compound and drying the resultant mixture. The protein-binding aluminum oxyhydroxides can be made resuspendable by acidifying to a pH value of between about 4 and about 6.5. Such acidification can occur either before or after drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.