Patent · US Expired

Lustrous black interference pigments

US7303622B2 · kind B2 · utility

71Cited by

5References

19Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Manuela Loch · Merxheim, DE
Nicole Schupp · Groß-Bieberau, DE
Ralf Anselmann · Munster, DE
Lilia Heider · Riedstadt, DE

Key dates

Filing date	Oct 1, 2004
Grant date	Dec 4, 2007
Priority date	—
Expiry date	Oct 1, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C2200/303
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to lustrous black interference pigments based on a substrate mixture, characterised in that it has

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