发明授权
US09334654B2 Roofing products including mixtures of algae-resistant roofing granules 有权
屋顶产品包括抗藻屋面颗粒的混合物

Roofing products including mixtures of algae-resistant roofing granules
摘要:
Roofing granule mixtures include multiple classes of algae-resistant granules, with each class of algae-resistant granules including at least one algaecide. One class of granules provides immediate algae resistance, while release of algaecide from other granules is delayed.
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