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Magnetic composite

  • US 9,105,382 B2
  • Filed: 01/21/2013
  • Issued: 08/11/2015
  • Est. Priority Date: 11/14/2003
  • Status: Active Grant
First Claim
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1. A magnetic particle and polymer viscoelastic composite comprising:

  • (a) a magnetic particle consisting of a ferrite having an exterior coating of about 0.005 to 8 wt. %, based on the composite, of an interfacial modifier, the magnetic particle having a particle size greater than about 1 micron, a particle size distribution such that there are greater than about 5 wt. % of magnetic particles in the range of 1 to 1000 microns to form the composite; and

    (b) a thermoplastic polymer phase;

    wherein the viscoelastic composite has a tensile elongation of about at least 5%.

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