Algae resistant roofing granules with controlled algaecide leaching rates, algae resistant shingles, and process for producing same

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United States of America Patent

PATENT NO 10876294
APP PUB NO 20190249435A1
SERIAL NO

16278615

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Abstract

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Algae-resistant roofing granules are formed by extruding a mixture of mineral particles and a binder to form porous granule bodies, and algaecide is distributed in the pores. Release of the algaecide is controlled by the structure of the granules.

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Patent Owner(s)

Patent OwnerAddress
CERTAINTEED LLC20 MOORES ROAD MALVERN PA 19355

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hardy, Anne B Acton, US 18 196
Hong, Keith C Litiz, US 68 1239
Johnson, Andrew G Barre, US 5 77
Kalkanoglu, Husnu M Swarthmore, US 195 6626
Salvatore, James A Worcester, US 15 243
Shiao, Ming Liang Collegeville, US 97 2318

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