Toner containing pigment and surface modified pyrogenically produced aluminum oxide

Disclosed is an electrophotographic toner comprising a resin, a pigment, and surface-modified, pyrogenically produced aluminum oxide which is has the following physico-chemical properties: -Surface (m2/g) 50 to 100 -Stamping density (g/l) 50 to 90 -Drying loss (%) <5 -Annealing loss (%) 5.0 to 15...

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Bibliographic Details
Main Authors STUBBE; ANDREAS, MICHAEL; GUENTHER, KERNER; DIETER, MEYER; JUERGEN, DEUSSER; HANS
Format Patent
LanguageEnglish
Published 26.03.1996
Edition6
Subjects
ADHESIVES
CHEMISTRY
CINEMATOGRAPHY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
DYES
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
INORGANIC CHEMISTRY
MAGNETOGRAPHY
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PHOTOGRAPHY
PHYSICS
POLISHES
PREPARATION OF CARBON BLACK
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Summary:Disclosed is an electrophotographic toner comprising a resin, a pigment, and surface-modified, pyrogenically produced aluminum oxide which is has the following physico-chemical properties: -Surface (m2/g) 50 to 100 -Stamping density (g/l) 50 to 90 -Drying loss (%) <5 -Annealing loss (%) 5.0 to 15 -C content (%) 0.5 to 12 -pH 4 to 8. -
Bibliography:Application Number: US19940245620