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BIOCIDAL ROOFING GRANULES, ROOFING PRODUCTS INCLUDING SUCH GRANULES, AND PROCESS FOR PREPARING SAME

  • US 20080026183A1
  • Filed: 07/30/2007
  • Published: 01/31/2008
  • Est. Priority Date: 04/07/2005
  • Status: Abandoned Application
First Claim
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1. Biocidal roofing granules comprising:

  • a mineral core; and

    an exterior coating covering the mineral core; and

    at least one biocidal photocatalytic metal oxide;

    the exterior coating including at least one porous layer having a network of pores formed therein; and

    the porous inorganic layer containing the at least one biocidal photocatalytic metal oxide in the network of pores.

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