Curable film-forming compositions and method of mitigating dirt build-up on a substrate
US9187670B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2014 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Sep 10, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/442
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to curable film-forming compositions comprising: (a) a curing agent component comprising: (i) isocyanate functional groups; and (ii) polydialkylsiloxane functional groups; (b) a film-forming polymer comprising functional groups reactive with the isocyanate functional groups in (a); and (c) an acrylic polymer component comprising: (i) hydroxyl functional groups; and (ii) polydialkylsiloxane functional groups; wherein the components (a), (b) and (c) are different from one another. The present invention is further directed 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.