Patent · US Expired

Pure-coloured, readily dispersible iron oxide red pigments with high grinding stability

US7294191B2 · kind B2 · utility

4Cited by

13References

13Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Carsten Rosenhahn · Kempen, DE
Wilfried Burow · Krefeld, DE
Volker Schneider · Sinsheim, DE

Key dates

Filing date	May 13, 2005
Grant date	Nov 13, 2007
Priority date	—
Expiry date	May 13, 2025

Classification

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

Abstract

The present invention relates to pure-coloured, readily dispersible iron oxide red pigments having high grinding stability, to a process for preparing them, and to their use.

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