Solar reflective composite granules and method of making solar reflective composite granules

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United States of America Patent

PATENT NO 10730799
APP PUB NO 20180194684A1
SERIAL NO

15855095

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of making a plurality of composite granules can include: forming green body granules comprising an aluminosilicate; heating the green body granules to form sintered granules; cooling the sintered granules according to a cooling regime, wherein the cooling regime comprises a temperature hold between 700° C. and 900° C. for at least one hour. In a particular embodiment, the aluminosilicate for making the composite granules can have a particle size less than 150 μm. The composite granules are particularly suitable as roofing granules and can have a desired combination of high solar reflectance SR and low lightness L*, a low bulk density, good weather resistance and strength.

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Patent Owner(s)

Patent OwnerAddress
CERTAINTEED CORPORATION20 MOORES ROAD MALVERN PA 19355

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dinoia, Todd P Littleton, US 16 47
Koseski, Ryan Buffalo, US 3 1
Lante, Bojana Northborough, US 5 10
Panzarella, Tracy H Norwood, US 17 384

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