abstract |
Aluminium-containing iron oxide pigments of the formula Fe 2‑x Al x O 3 , wherein x has a value in the range from 0.01 to 0.25, characterized in that the pigments have in alkyd resins according to DIN EN ISO 787‑25:2007 30.5 to 32.5 CIELAB units for a* values, 25.5 to 30.5 CIELAB units for b* values as Purton measurements. |