Particulates having high total solar reflectance
US10253493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2016 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Aug 29, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B80/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
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 form a particulate mixture, heat treating the particulate mixture, and coating the heat treated mixture with the hydrophobic coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.