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MULTI-LAYERED COATINGS AND METHODS FOR CONTROLLING ELUTION OF ACTIVE AGENTS

  • US 20080075753A1
  • Filed: 09/25/2007
  • Published: 03/27/2008
  • Est. Priority Date: 09/25/2006
  • Status: Abandoned Application
First Claim
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1. A method of applying an elution control coating to a substrate comprising:

  • depositing a coating solution onto the substrate to form a base layer, the coating solution comprising an active agent, a polymer, and a solvent;

    selecting a desired concentration of the solvent based on a desired elution rate;

    removing solvent from the base layer to reach a desired concentration of the solvent; and

    depositing a layer of parylene on the base layer.

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