Tunable nanoporous films on polymer substrates, and method for their manufacture
US9732427B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2011 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Aug 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249978
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention is directed to a composite polymer/nanoporous film system and methods of fabrication of tunable nanoporous coatings on flexible polymer substrates. The porosity of the nanoporous film can be tuned during fabrication to a desired value by adjusting the deposition conditions. Experiments show that SiO2 coatings with tunable porosity fabricated by oblique-angle electron beam deposition can be deposited on polymer substrates. These conformable coatings have many applications, including in the field of optics where the ability to fabricate tunable refractive index coatings on a variety of materials and shapes is of great importance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.