Powder material for electrostatic application to a substrate and electrostatic application of the powder material to a substrate
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United States of America Patent
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Oct 23, 2007
Grant Date -
Jun 19, 2003
app pub date -
Feb 1, 2001
filing date -
Feb 1, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method of electrostatically applying powder material to a substrate, wherein the substrate is a pharmaceutical substrate and the powder material is pharmaceutically acceptable. At least some of the particles of the material comprise a core and a shell surrounding the core, and the material of the core and the shell have different physical and/or chemical properties.
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