Effervescent granules and methods for their preparation
US6071539A · kind A · utility
87Cited by
21References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1997 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Sep 19, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1694
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
According to the present invent, effervescent granules having a controllable rate of effervescence are provided. Such granules comprise an acidic agent, an alkaline agent, a hot-melt extrudable binder capable of forming a eutectic mixture with the acidic agent and, optionally, a plasticizer. The effervescent granules are made by a hot-melt extrusion process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.