Spherical granules having core and their production
US5026560A · kind A · utility
246Cited by
5References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1988 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Jan 14, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1676
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The spherical granules having a core coated with spraying powder containing a drug and low substituted hydroxypropylcellulose, because of their excellent hardness, can be coated further evenly, (e.g. sustained release coating, gastric coating, enteric coating), and at the time the granules are excellent in disintegration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.