Continuous roll-to-roll process design for vertical alignment of particles using electric field
US11077631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2014 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Feb 3, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0044
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of preparing an anisotropic polymer film using an electric field generator. The method of preparing an electric field generator comprising supplying an electric field across an electric field application zone, where the electric field is generated by a first electrode having a first charge and a second electrode having a charge opposite of the first, passing a polymer film that optionally includes dispersed particles through the electric field application zone, where the polymer film contacts the first electrode to induce orientation, and freezing the polymer film to lock the orientation before the polymer film exits the electric field application zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.