Hydrophobic silica for electrophotographic toner composition

Hydrophobic silica for electrophotographic toner composition

The invention relates to a hydrophobic silica powder which is unprecedentedly insensitive to environmental humidity with which electrophotographic toner can possess stable electro static charge that leads to stable quality of printed image. The hydrophobic silica powder has the following physicochem...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KANEEDA, MASANOBU, YAMCHI, FARIDEH, BEHNISCH, JUERGEN, PELTZER, JENS, LAMANN, RAINER
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
CINEMATOGRAPHY
COMPOUNDS THEREOF
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
INORGANIC CHEMISTRY
MAGNETOGRAPHY
METALLURGY
NON-METALLIC ELEMENTS
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung:The invention relates to a hydrophobic silica powder which is unprecedentedly insensitive to environmental humidity with which electrophotographic toner can possess stable electro static charge that leads to stable quality of printed image. The hydrophobic silica powder has the following physicochemical properties; - average primary particle size (D) is 30-2000 nm, - B*D 0.30 wt.-%.