Utilization of a transacylation reaction between an esterified polysaccharide and a polyaminated or polyhydroxylated substance for fabricating microparticles, microparticles thus obtained, methods and compositions containing them
US5691060A · kind A · utility
87Cited by
8References
61Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 21, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Feb 21, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2985
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to microparticles, particularly microcapsules and their fabrication method. Said microparticles, and particularly said microcapsules, are characterized in that they have a wall made of the product obtained from the reaction between a polysaccharide carrying esterified carboxylic groups and a polyaminated or polyhydroxylated substance, particularly through a transacylation reaction. Said microparticles or said microcapsules are useful for the fabrication of cosmetic, pharmaceutical or food product compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.