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US 5,512,264 AGranted
Finely divided blue molybdenum oxide
AssigneeBASF SE
InventorsJorg Adel, Erwin Czech
Life of this patent
Estimating the term…
Abstract
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.
Claims9
An amorphous, blue mixed-valence molybdenum oxide containing about 10% molybdenum (V) and about 90% molybdenum (VI), having a particle size distribution of from 2 to 100 nm.
A process for the preparation of amorphous, blue molybdenum oxide having a particle distribution of from 2 to 100 nm, which comprises:
- a) vaporizing molybdenum hexacarbonyl at a temperature from about 20.degree. C. to 100.degree. C. in an inert gas stream, and
- b) oxidizing said vaporized molybdenum hexacarbonyl at a temperature of from about 100.degree. C. to about 500.degree. C. in an oxygen-containing atmosphere.
Dependencies are inferred from the claim text.