Aqueous solven encapsulation method, apparatus and microcapsules
US6531156B1 · kind B1 · utility
39Cited by
25References
10Claims
0Family size
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Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2039/55555
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to microcapsules comprising a wall and an aqueous core comprising various active agents, and prepared by the interfacial reaction in aqueous medium of Lewis acid and base wall-forming reactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.