Transparent hydrophobic coating materials with improved durability and methods of making same
US10113067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2014 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Aug 7, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Durable, transparent, inorganic-organic hybrid hydrophobic coating materials for glass, metal or plastic substrates are provided. The coating materials are generally an acid catalyzed condensation reaction product comprised of an organic polymeric silane (e.g., a polyol functionalized with a silane through a urethane linkage or a polyamine functionalized with a silane through a urea linkage, such as isocyanatopropyltrimethoxysilane or isocyanatopropyltriethoxysilane), an inorganic metal alkoxide (e.g., silicon alkoxides such as tetraethoxysilane or tetramethoxysilane) and a fluorinated silane (e.g., (3,3,3-trifluoropropyl)trimethoxysilane or nonafluorohexyltrimethoxysilane).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.