Polymer films for medical device coating
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United States of America Patent
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Dec 2, 2014
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N/A
app pub date -
Dec 4, 2008
filing date -
May 25, 2007
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Abstract
A method for depositing a coating comprising a polymer and impermeable dispersed solid on a substrate, comprising the following steps: discharging at least one impermeable dispersed solid in dry powder form through a first orifice; discharging at least one polymer in dry powder form through a second orifice; depositing the polymer and/or impermeable dispersed solid particles onto said substrate, wherein an electrical potential is maintained between the substrate and the impermeable dispersed solid and/or polymer particles, thereby forming said coating; and sintering said coating under conditions that do not disrupt the activity and/or function of the substrate. A similar method is provided for depositing a coating comprising a hydrophobic polymer and a water-vapor-trapping material on a substrate.
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