Biocidal roofing granules, roofing products including such granules, and process for preparing same
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United States of America Patent
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May 29, 2018
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N/A
app pub date -
Jan 11, 2012
filing date -
Apr 7, 2005
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Abstract
Biocidal roofing granules are prepared by providing a mineral core and at least one biocidal photocatalytic metal oxide. A gel-forming inorganic coating medium is prepared and used to coat the mineral core to form a coating layer having a porous network on the mineral core, and the at least one biocidal photocatalytic metal oxide is disposed in the porous network.
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