Coating substrate with crosslinked conductive polymer
US5620749A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1996 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Aug 1, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31797
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for forming a conductive substrate comprises coating onto a polyethylene terephthalate substrate an aqueous coating solution containing a conductive crosslinkable polymer with charge carrying groups such as sulfonic acid, sulfuric acid ester or quaternary ammonium salt groups attached to a polymerized ethylenic monomer backbone, a volatile amine in an amount to maintain a pH of above 7.0 and a crosslinking agent such as a polyfunctional aziridine, removing water and the volatile amine which decreases the pH to below 7.0 wherein a reaction between the crosslinkable groups of the polymer and the crosslinking agent is initiated to form a crosslinked conductive polymer film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.