COACERVATION PROCESS
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United States of America Patent
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Issued Date -
Oct 11, 2012
app pub date -
Dec 22, 2011
filing date -
Mar 22, 2007
priority date (Note) -
Abandoned
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Abstract
Methods of forming compositions for the sustained release of water soluble active agents, including biologically active polypeptides and products produced by the process are described. Improved product characteristics and ease of scale-up can be achieved using a novel coacervation process wherein at least one coacervation agent is added to the mixture comprising the active agent and the polymer in at least two distinct stages.
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