Polyesters of a polyhydroxycarboxylic acid and a polyol having a substituent with electrolyte properties
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United States of America Patent
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Jul 27, 1999
Grant Date -
N/A
app pub date -
Apr 24, 1997
filing date -
Feb 25, 1994
priority date (Note) -
Expired
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Abstract
The invention relates to new polyesters of a polyol containing substituents with electrolyte properties with polymeric hydroxycarboxylic esters, their method of preparation and their use. The polyesters are particularly suitable for use in the preparation of sustained-release drugs.
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