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Controlled releasing composition

  • US 20110244043A1
  • Filed: 12/10/2009
  • Published: 10/06/2011
  • Est. Priority Date: 12/10/2008
  • Status: Active Grant
First Claim
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1. A controlled release composition comprising a plurality of microparticles operably linked to a matrix, wherein:

  • the plurality of microparticles comprises a first material and a first active agent;

    the matrix comprises a second material;

    the first material comprises an initial melting temperature TH;

    the second material comprises a complete melting temperature TL;

    Δ

    T=TH

    TL; and

    Δ

    T>

    0.

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