Patent · US Expired

Colored pigments

US6884289B2 · kind B2 · utility

20Cited by

5References

16Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Sabine Schoen · Darmstadt, DE
Christoph Schmidt · Kriftel, DE

Key dates

Filing date	Apr 24, 2002
Grant date	Apr 26, 2005
Priority date	—
Expiry date	Apr 24, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2993
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to colored pigments based on multicoated platelet-shaped substrates which are distinguished by the fact that they comprise

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