Method for preparing an oriented and nanostructured surface of a polymer
US7838074B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2006 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Sep 28, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24926
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention concerns a method for preparing a substrate one surface of which consists of a polymer, said polymer surface being oriented and nanostructured, said method including the following successive steps: a) brushing the polymer surface in an amorphous state of the substrate; b) contacting with a vapor of a solvent, the oriented polymer surface obtained at the end of step a), said solvent being selected such that: |δpoly−δsol|/[(δpoly+δsol)/2]<0.3, δpoly and δsol representing respectively the solubility parameters of the polymer and of the solvent, and γsol<γpoly, γsol et γpoly representing respectively the free surface energies of the solvent and the polymer. The invention concerns a substrate one polymer surface of which at least is oriented and nanostructured, and the various uses of said substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.