PARTICULATES HAVING HIGH TOTAL SOLAR REFLECTANCE

A reflective particulate composition includes a particulate mixture that includes a particulate substrate, a hardness enhancer and a pigment. The reflective particulate substrate has a hydrophobic coating on the particulate mixture. The composition may have a solar reflectance of 70% or greater. The...

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Bibliographische Detailangaben
Hauptverfasser: SMITH, ROCKY LEE, JENREE, RHONDA MARIE, WU, SHIH-JEN, WELLER, JR. DAVID EARL
Format: Patent
Sprache:eng ; pol
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Zusammenfassung:A reflective particulate composition includes a particulate mixture that includes a particulate substrate, a hardness enhancer and a pigment. The reflective particulate substrate has a hydrophobic coating on the particulate mixture. The composition may have a solar reflectance of 70% or greater. The pigment may include a clay, and the particulate substrate may include a feldspar. A method of making the composition may include mixing the particulate substrate, the hardness enhancer, and the pigment to forma particulate mixture, heat treating the particulate mixture, and coating the heat treated mixture with the hydrophobic coating.