SHINGLES WITH INCREASED HYDROPHOBICITY
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United States of America Patent
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Issued Date -
Aug 27, 2015
app pub date -
Feb 17, 2015
filing date -
Feb 21, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
One exemplary embodiment of a shingle includes a substrate, a surface layer of granules, a backdust layer, and hydrophobic material. The substrate is infiltrated with asphalt to form a first asphalt coating on the top or upper surface of the substrate and a second asphalt coating on the bottom or lower surface of the substrate. A surface layer of granules is embedded in the first asphalt coating. A backdust layer of particles is embedded in the second asphalt coating. A hydrophobic material is applied to at least one of the surface layer and the backdust layer.
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