Self-cleaning protective coatings
US9260630B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 2, 2015 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Apr 2, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2241
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coating compositions that include a halopigment dispersed within a silicon-containing polymeric matrix (e.g., a polysiloxane polymer) are provided. The halopigment comprises a halogenated phthalocyanine (e.g., a fluorinated phthalocyanine) attached to a support particle (e.g., a metal oxide, a non-metal oxide, and/or an inert material). The halogenated phthalocyanine can have the formula: (16R-Pc)nMLo, where each R is, independently, a halogen or a perhaloalkyl group, with each R group being independent from the other groups; Pc is a phthalocyanine compound; 1≦n≦2; L is a ligand or ligands and M is a cation; and 0≦o≦8. Methods are also provided for forming such a coating composition and for coating a substrate with the coating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.