Acrylic polymers, curable film-forming compositions prepared therefrom, and method of mitigating dirt build-up on a substrate
US9120916B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2014 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Jun 12, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/1804
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to acrylic polymers comprising: (i) hydroxyl functional groups; (ii) polydialkylsiloxane functional groups; and (iii) silica nanoparticles that are chemically bonded to and pendant from the acrylic polymer. The present invention is further directed to curable film-forming compositions comprising acrylic polymers, and to coated substrates comprising the curable film-forming composition applied to at least one surface of the substrates. The present invention is also drawn to methods of mitigating dirt build-up on a substrate, comprising applying to at least a portion of the substrate the curable film-forming composition described above and at least partially curing the curable film-forming composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.