Polyesters, method for producing same, and depot medicaments produced from these polyesters
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United States of America Patent
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Aug 8, 2006
Grant Date -
Apr 15, 2004
app pub date -
Nov 8, 2001
filing date -
Nov 10, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to novel absorbable polyesters, produced by ring-opening polymerisation of hydroxycarboxylic acids in the presence of a polyol containing an electrolyte, in an extruder. In particular, the invention relates to novel polylactide glycolide polyesters which are essentially free of dextran sulphate and which are produced by ring-opening polymerisation of lactide and glycolide in the presence of dextran sulphate in the extruder; to the production of the same and to their use in depot medicaments.
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