Polymers of citric acid and diamines, a process for their preparation and their uses, in particular as carriers of drugs
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United States of America Patent
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Jun 25, 1991
Grant Date -
N/A
app pub date -
Mar 2, 1989
filing date -
Mar 8, 1988
priority date (Note) -
Expired
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Abstract
The present invention provides polyamides produced by the condensation of diamines with citric acid through the carboxyl groups attached to the carbon atoms in positions 1 and 3. These polyamides can be used for the preparation of controlled-release forms of drugs.
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