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Discontinuous Surface Coating for Particles

  • US 20110014298A1
  • Filed: 09/02/2010
  • Published: 01/20/2011
  • Est. Priority Date: 01/10/2005
  • Status: Abandoned Application
First Claim
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1. A method for preparing an immediate and time release particle having a surface partially coated comprising the steps of (a) preparing a first hydrophilic deposit and a hydrophobic polymeric finish;

  • (b) adding a compatible active to the first hydrophilic deposit, the hydrophobic polymeric finish, or both of the deposit and the finish;

    (c) partially coating the surface with the first hydrophilic deposit;

    (d) drying the particles until between about 0.01 to 25.00 percent by weight of the particle of water remains; and

    (e) partially coating the surface with the hydrophobic polymeric finish.

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