Plateletlike pigments based on iron oxide

US4867795A · kind A · utility

Assignee

• BASF SE

Inventors

• Werner Ostertag · Havelsee, DE
• Norbert Mronga · Dossenheim, DE

Key dates

• Filing date: Mar 8, 1988
• Grant date: Sep 19, 1989
• Expiry date: Mar 8, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/66
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Plateletlike pigments based on iron oxide and having a spinel structure of the composition: EQU Mn.sub.u Al.sub.v Fe.sub.[3-(u+v)]-z O.sub.4-z, where PA0 u is from 0.01-0.09, PA0 v is from 0-0.3 and PA0 z is from 0-1. The pigments can be used for producing decorative coatings, in particular in paints, plastics, prints and cosmetics, for producing electromagnetic screens, as substrates for coatings and as pigments having magnetic properties.