Infrared reflective clear coating compositions for elastomeric wall and roof coatings
US9499712B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jun 30, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K7/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides compositions for use as elastomeric roof coatings having excellent infrared (IR) reflectivity which comprise (i) one or more elastomeric copolymer having a measured glass transition temperature (measured Tg) of from −100 to 0° C. and one or more mesoporous filler, preferably a mesoporous filler that is substantially free of organic groups or residues, the mesoporous filler chosen from mesoporous silica, mesoporous aluminosilicates and mesoporous alumina, wherein the composition has a pigment volume concentration (% PVC) of from 0.1 to 15%. Such compositions provide aqueous or solvent borne clearcoats that can go over existing, already painted or colorcoated roof or wall substrates to preserve their finish or appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.