Transparent hydrophobic and icephobic compositions, coatings, and methods
US12054638B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2019 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/011
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In certain aspects, a composition includes a monomer binder, a plurality of silica nanoparticles, a surface energy reducing additive, and a blend of a high polarity solvent and a low polarity solvent. The high polarity solvent has a dipole moment of about 1.2 or greater, and the low polarity solvent has a dipole moment of about 0.7 or less. In certain aspects, a coated substrate includes a substrate and a coating over the substrate. The substrate is selected from a group consisting of glass, polycarbonate, polyacrylate, and polyethylene terepthalate. The coating includes a polymer binder, a plurality of nanoparticles, and a surface energy reducing additive. The coated substrate has a transparency of at least about 80% light transmission at one or more wavelengths in a range of 380 nm to 740 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.