The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2003
Filed:
Sep. 22, 2000
Axel Niemann, Frankfurt, DE;
Guy Roche, Isle, FR;
DMC, Frankfurt am Main, DE;
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.