Composite films comprising carbon nanotubes and polymer
US8496796B2 · kind B2 · utility
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Key dates
| Filing date | Oct 17, 2007 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249948
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for forming a composite film on a substrate comprises providing a suspension comprising an ionised polymer and functionalised carbon nanotubes in a solvent, at least partially immersing the substrate and a counterelectrode in the suspension, and applying a voltage between the substrate and the counterelectrode so as to form the composite film on the substrate. Electrical charges on the polymer and on the nanotubes have the same sign and the voltage is applied such that the charge on the substrate has the opposite sign to the charge on the polymer and the nanotubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.