Basf Aktiengesellschaft

Jorg Adel

Norbert Mronga

Rainer Dyllick-Brenzinger

Raimund Schmid

Erwin Czech

Boubacar Camara

Bismuth vanadate pigments of the formula (Bi.sub.4 V.sub.2 O.sub.11).sub.1-x.(BiVO.sub.4).sub.x, where 0.ltoreq.x&lt;0.9, further comprising from 0 to 0.5% by weight of phosphorus in the form of bismuth phosphate, are characterized by a CIELAB hue angle of from 64 to 91.degree., a chroma of from 72 to 95 and a lightness.gtoreq.62 (measuring angle 45.degree., standard illuminant D65).

Bismuth vanadate pigments

Goniochromatic luster pigments based on multiply coated platelet-shaped metallic substrates comprising at least one layer packet of

Goniochromatic luster pigments with silicon-containing coating

Goniochromatic luster pigments with aluminum coating

Carriers for electrophotography, based on magnetic cores coated with metal oxide and with metal or magnetite, and their preparation and their use for electrophotographic two-component developers.

Metal oxide- and metal-coated carriers for electrophotography

Carriers for electrophotography, based on magnetic cores coated with different metal oxides, have A) a first layer which essentially consists of electrically insulating metal oxide and B) a second layer which essentially consists of metal oxide controlling the electrostatic charging of the toner and which does not substantially decrease the electroresistance of the carriers, which resistance is provided by the layer (A).

Carriers doubly coated with metal oxide and intended for

An amorphous, blue molybdenum oxide having a particle size distibution of from 2 to 100 nm, and which is used advantageously in the preparation of toners for electrophotography.

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Ludwigshafen, Germany

Jorg Adel