Biodegradable amphipathic copolymers
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United States of America Patent
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May 17, 1988
Grant Date -
N/A
app pub date -
Jun 21, 1985
filing date -
Jun 26, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pharmaceutically or veterinarily acceptable amphipathic, non-cross linked linear, branched or graft block copolymer, which has a minimum weight average molecular-weight of 1000, in which the hydrophobic component is biodegradable or hydrolytically unstable under normal physiological conditions, and the hydrophilic component may or may not be biodegradable or hydrolytically unstable under such conditions, and which copolymer is self-dispersible in water; together with mixtures of such a copolymer and a drug, which may be water-soluble of water-insoluble, which mixtures are self-dispersible in water; and processes for the manufacture of such copolymers and such mixtures.
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