Effervescent microcapsules
US5639475A · kind A · utility
86Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1995 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Feb 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Taste masked effervescent microcapsules are provided each microcapsule containing an effervescent admixture of sodium bicarbonate and citric acid microencapsulated with ethylcellulose, the effervescent microcapsules being useful in formulating taste masked effervescent chewable tablets also containing microencapsulated, unpleasant tasting drugs such as non-steroidal, anti-inflammatory, NSAID drugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.