Hybrid coating for roof applications
US10597555B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Aug 30, 2017 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Feb 14, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/27
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments may include a coated granule for roofing systems. The coated granule may include an aluminum silicate granule and a coating disposed on the aluminum silicate granule. The coating may include a copolymer and a siloxane-based or a silane-based compound. The copolymer may be a cationic fluorinated (meth)acrylic copolymer. The aluminum silicate granule may have a particle size in a range from 0.2 mm to 2.4 mm. The aluminum silicate granule may have a 65% or greater reflectivity. The coated granule may repel oil and maintain its reflectivity better than with other techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.