Process for producing block copolymer/drug composite
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United States of America Patent
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Issued Date -
Sep 29, 2005
app pub date -
Dec 8, 2004
filing date -
Jun 19, 2002
priority date (Note) -
Abandoned
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Abstract
A process for producing a block copolymer-drug composite that can be industrialized, wherein neither dialysis nor ultrafiltration is performed and wherein halogenated hydrocarbons are not used. The process for producing a block copolymer-drug composite is characterized by comprising the steps of dissolving an AB type block copolymer composed of hydrophilic polymer structure moiety and hydrophobic polyamino aid structure moiety together with a drug in water or a mixed solvent of water and a low-boiling-point organic solvent miscible with water and concentrating the resultant solution.
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