Polyetherester copolymers as drug delivery matrices
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United States of America Patent
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Nov 9, 1999
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N/A
app pub date -
Aug 16, 1996
filing date -
Aug 16, 1996
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Abstract
A composition for delivering a biologically active agent to a host. The composition comprises a product including a biologically active agent encapsulated in a matrix comprising a polyetherester copolymer, such as a polyethylene glycol terephthalate/polybutylene terephthalate copolymer. The polyetherester copolymer protects the biologically active agent (including proteins, peptides, and small drug molecules) from degradation or denaturation, and therefore such copolymers may be employed in a variety of drug delivery systems and vaccines.
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