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US 4,288,517 AGranted
Toner for electrostatic photography containing resin coated silica particles
AssigneeNippon Paint Co., Ltd.
InventorsSeiji Arimatsu, Katsukiyo Ishikawa, Yasusi Umeda, Koichi Nagata
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Abstract
A toner composition for electrostatic photography which comprises (A) toner powder comprising a base resin and a coloring agent and having an average particle size of not more than 30 microns and (B) silica powder coated on its surface with the base resin of the toner powder.
Claims8
A toner composition for electrostatic photography which comprises (A) toner powder comprising a base resin and a coloring agent and having an average particle size of not more than 30 microns and (B) silica powder coated on its surface with the base resin of the toner powder.
Dependencies are inferred from the claim text.