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Magnetic microparticles comprising organic substances

  • US 20070281034A1
  • Filed: 05/15/2007
  • Published: 12/06/2007
  • Est. Priority Date: 05/15/2006
  • Status: Abandoned Application
First Claim
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1. A composition comprising microparticles, said microparticles comprising:

  • (i) a magnetic substance;

    (ii) a polymer associated with said magnetic substance, said polymer having functional groups ionizable to produce a charge sign; and

    (iii) an ionizable organic compound, wherein said ionizable organic compound in aqueous medium is ionizable to the charge sign opposite to that of said polymer, and wherein said magnetic substance and said organic compound in totality constitute at least 50% of the microparticle dry mass, and wherein said microparticles are dispersible in water.

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