Patent · US Active

Method for producing finely divided haematite and for producing iron oxide red pigments

US9428402B2 · kind B2 · utility

4Cited by

9References

20Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Guido Ketteler · Düsseldorf, DE
Udo Holtmann
Juergen Kischkewitz · Ratingen, DE

Key dates

Filing date	Sep 28, 2012
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Nov 9, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2982
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to an improved process for the production of finely divided haematite and of iron oxide red pigments made up of the finely divided haematite and the use of the finely divided haematites and iron oxide red pigments produced by this process.

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