Method of preparing article with polyaniline pattern
US9718935B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2016 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Apr 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/1283
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method is used to provide an electrically-conductive polyaniline patterns on a substrate. A photocurable composition is applied as a pattern, comprising a water-soluble reactive polymer comprising (a) greater than 40 mol % of recurring units comprising sulfonic acid or sulfonate groups, (b) at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition. The pattern is exposed to radiation sufficient to cause crosslinking via [2+2] photocycloaddition of the (b) recurring units to form a pattern of crosslinked polymer. The crosslinked polymer is contacted with an aniline reactive composition comprising an aniline monomer and up to 0.5 molar of an aniline oxidizing agent, in a molar ratio of from 1:0.5 to 1:1.5 of the aniline monomer to the aniline oxidizing agent. A pattern of electrically-conductive polyaniline disposed within, on top of, or both within and on top of, the crosslinked polymer only.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.