Process for producing a conductive coating on glass or on enamelled steel and substrates coated by this process
US6531181B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2000 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Sep 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/053
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process for producing a conductive coating on glass and enamelled steel using a screen-printable aluminum paste. The paste to be used contains: 40 to 80 wt. %, in particular, 50 to 75 wt. % aluminum powder; 5 to 40 wt. %, in particular, 9 to 25 wt. % glass frit having an initial softening temperature of 400 to 700° C., in particular, 420 to 580° C.; 10 to 35 wt. % of a liquid or thermoplastic medium; and 0 to 10 wt. % sintering aid. The substrate coated with the paste is heated at 500 to 750° C., in particular, 590 to 690° C. The coating on the substrate is characterized by having a low specific resistance of less than 100 &mgr;ohm·cm, in particular in the range of 10 to 70 &mgr;ohm·cm, and good adhesion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.