Polyanion-stabilized aluminum hydrogels
US4181718A · kind A · utility
43Cited by
5References
15Claims
0Family size
Inventors
Key dates
| Filing date | Feb 13, 1978 |
| Grant date | Jan 1, 1980 |
| Priority date | — |
| Expiry date | Feb 13, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/38
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Aluminum hydrogels which are stabilized at pH below 7 with a polymer containingcarboxyl groups, e.g., carboxy methyl cellulose or gum arabic. The gels are useful as phosphate binding agents in the treatment of hyperphosphatemia. Such polymers are incorporated during the formation of the aluminum hydrogel, permitting a high yield to be obtained, and preventing colloidal sol formation during exchange with monovalent anions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.