Coated granules of polyacrylic alkali metal salts and method of producing same
US4150110A · kind A · utility
17Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1977 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | May 11, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Granules of polyacrylic alkali metal salts are coated with a water-insoluble but water-permeable coating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.