Method for preparing an oxide film on a polymeric substrate
US10442906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2015 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jun 12, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2369/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Various embodiments refer to a method for preparing an oxide film on a polymeric substrate, wherein the oxide film is a titanium oxide film (which is optionally niobium- or silicon-doped) or silicon oxide film. The method comprises contacting a polymeric substrate with a liquid reagent comprising a polyalkoxysilane such as 3-aminopropyltriethoxysilane to form a layer of the polyalkoxysilane on the polymeric substrate by self-assembly, and contacting said layer with an aqueous mixture comprising (i) titanium tetrafluoride and/or a fluorine-containing titanium complex such as ammonium hexafluorotitanate and/or a fluorine-containing silicon complex such as ammonium hexafluorosilicate, and (ii) a fluorine scavenger such as boric acid, at a temperature of less than about 100° C. to obtained the oxide film on the polymeric substrate. An oxide film prepared by said method is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.