Paste for formation of transparent electroconductive coating film and process for preparation of said paste
US4456549A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Jun 26, 1984 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a paste for formation of a transparent electroconductive coating film, which comprises as a main component an organic indium complex having an oxygen atom coordinated directly to the indium atom, which is capable of forming an indium oxide film by sintering, such as trisacetylacetonatoindium (III). This paste provides a coating film having a low resistivity and a high transparency by screen printing and sintering, and has a good stability and a long pot life. If an organic tin compound such as tin octylate, dibutyl tin dilaurate or tetraacetylacetonatotin is incorporated as a resistivity-adjusting agent into this paste in an amount such that the Sn/(In+Sn) atomic ratio is 2 to 20%, especially good results are obtained. A cellulose derivative such as ethyl cellulose, nitrocellulose, acetyl cellulose or benzyl cellulose is advantageously incorporated as a viscosity builder into the paste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.