Aqueous core microcapsules and method for their preparation
US5132117A · kind A · utility
68Cited by
12References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jan 11, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2985
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A microcapsule comprising an aqueous core, and capsular membrane formed from the interfacial reaction product of a hydrophilic polymeric Lewis acid or salt thereof with a lipophilic Lewis base or salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.