发明申请
US20080241516A1 PHOTOCATALYTIC COLORED ROOFING GRANULES 有权
光化学彩色花岗岩

PHOTOCATALYTIC COLORED ROOFING GRANULES
摘要:
Algae-resistant roofing granules include a mineral core; and an exterior coating including clay, colloidal silica, phosphate, a metal oxide, and a photocatalytic particulate having an average size under 100 nm.
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