Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Donn R. Vermilion0
William Brian Ward0
Xiujuan Zhang0
Chris Armintrout0
Date of Patent
September 21, 2021
0Patent Application Number
201809200
Date Filed
September 20, 2018
0Patent abstract
A shingle includes a substrate having an asphalt coating on a top surface of the substrate and on a bottom surface of the substrate. A surface layer of granules is embedded in the asphalt on the top surface of the substrate. A backdust layer of particles is embedded in the asphalt on the bottom surface of the substrate. A sealant is disposed on the backdust. A hydrophobic material is applied to the sealant.
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