Solar heat-reflective roofing granules, solar heat-reflective shingles, and process for producing same
US8361597B2 · kind B2 · utility
15Cited by
94References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 27, 2008 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Sep 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2996
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Solar-reflective roofing granules having improved solar heat-resistance are formed by coating colored mineral particles with a coating composition including titanium dioxide nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.