Red-tinged bismuth vanadate pigments
AssigneeCiba Specialty Chemicals Corporation
InventorsLeonardus Johannes Hubertus Erkens, Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains, Helena Francisca Maria Schulpen-Vleugels
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Abstract
Zirconium-containing, red-tinged bismuth vanadate pigments of general formula I, BiVbOx.Cac(MoO4)d.ZreSifOy.Fz I wherein the variables have the following meanings: b 0.8 to 1.5; c 0 to 0.3; d 0 to 0.3; e 0.01 to 0.3; f 0 to 0.3; x (3/2+5b/2); y (2e+2 f); z 0.001 to 0.5, and a process for the preparation thereof and the use thereof in pigmenting high molecular weight organic materials such as surface-coatings, plastics and printing inks.
Claims19
A zirconium-containing, red-tinged bismuth vanadate pigment of general formula (I),
- BiVbOx.Cac(MoO4)d.ZreSifOy.Fz (I)
- wherein the variables are
- b 0.8 to 1.5;
- c 0 to 0.3;
- d 0 to 0.3;
- e 0.01 to 0.3;
- f 0 to 0.3;
- x (3/2+5b/2);
- y (2e+2 f);
- z 0.05 to 1.0.
Dependencies are inferred from the claim text.