Biodegradable polymer compositions
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United States of America Patent
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-
Mar 12, 1991
Grant Date -
N/A
app pub date -
Mar 30, 1989
filing date -
Mar 30, 1989
priority date (Note) -
Expired
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Abstract
Biodegradable polyanhydrides or polyester compositions based on amino acids. The compositions may be used as carriers for drugs or the like or as the drug source itself. The polymers are prepared from amino acids which are modified to include an additional carboxylic acid group.
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