Patent · US Expired

Conductive flaky pigments

US5322561A · kind A · utility

9Cited by

6References

7Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Constanze Prengel · Weiterstadt, DE
Klaus Bernhardt · Groß-Umstadt, DE

Key dates

Filing date	Dec 4, 1992
Grant date	Jun 21, 1994
Priority date	—
Expiry date	Dec 4, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C2220/10
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to conductive flaky pigments for which a flaky substrate has been coated with an electrically conductive layer, characterized in that the conductive layer comprises a metal oxide pigment layer which is interspersed with carbon black particles and which has at the same time been doped with additional metal oxide particles.

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