Patent · US Expired

Carbon bearing contact paste

US4288353A · kind A · utility

12Cited by

5References

10Claims

0Family size

Assignees

Swiss Aluminium Ltd. · CH
Sigri Elektrographit GmbH · DE

Inventors

Wolf-Dietrich Eckel · Frankfurt, DE
Eckhard Schulz · Wallenhorst, DE

Key dates

Filing date	Oct 8, 1980
Grant date	Sep 8, 1981
Priority date	—
Expiry date	Oct 8, 2000

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31815
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Carbonaceous contact paste for producing a high strength, electrically conductive connection between elements which experience high temperatures. The cold workable paste comprises a mixture of epoxy resin and tar as binder and graphite and metal in powder form as solid constituents. Before being used, an acid-free hardener e.g. polyamine is added to the paste. The electrical and thermal conductivity of the contact paste correspond to that of carbon blocks, and the paste is particularly suitable for joining such blocks to metallic conductors e.g. as in anodes and cathodes for cells used for the fused salt electrolytic production of aluminum.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.