Patent · US Expired

Coating for metallic substrates

US4689271A · kind A · utility

7Cited by

2References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans-Joachim Schittenhelm · Neunburg vorm Wald, DE
Werner Joseph · Cologne, DE
Otto Krist · Overath, DE

Key dates

Filing date	Jul 25, 1985
Grant date	Aug 25, 1987
Priority date	—
Expiry date	Jul 25, 2005

Classification

Technology area (CPC H)Electricity
CPC primaryH05K1/053
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to metal substrates which are coated with electrically insulating layers whose electrical resistance has a low temperature dependence, the insulating layer on said metal substrates consisting essentially of a melted-on material containing 43-47% by weight of B.sub.2 O.sub.3, 29-33% by weight of CaO, 10-15% by weight of SiO.sub.2, 7-10% by weight of Al.sub.2 O.sub.3 and 1-2% by weight of MgO.

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