【発明の名称】静電荷像現像用トナーおよびその製造方法

Title:

【発明の名称】静電荷像現像用トナーおよびその製造方法

Document Type and Number:

Japanese Patent JP2660074

Kind Code:

B2

Abstract:

Spheroidal toner for developing electrostatic images is composed of a binding resin as its main component in which at least carbon black and a dispersion stabilizer for the carbon black are contained, the conductivity of the toner being in the range of 5 x 10<-><1><1> to 5 x 10<-><9> S/cm and is manufactured by the steps of: forming grafted carbon black by prepolymerization of polymerizable composition containing carbon black and a monomer forming a binding resin; adding a carbon black dispersion stabilizer to the prepolymerized composition; and suspending the composition in an aqueous medium and polymerizing the suspended particles in the presence of a polymerization initiator.

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Inventors:

OOTA HIDEKI
IMAFUKU TATSUO
TSUJIHIRO MASAKI
TOKUNO TOSHIRO
SHIMOYAMA HIROSHI
HIRANO NOBUHIRO

Application Number:

JP31250089A

Publication Date:

October 08, 1997

Filing Date:

November 30, 1989

Export Citation:

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Assignee:

MITA KOGYO KK

International Classes:

G03G9/08; G03G9/087; G03G9/09; (IPC1-7): G03G9/09; G03G9/087

Domestic Patent References:

JP1145664A
JP63313168A
JP176068A
JP6461762A
JP63210852A
JP63210849A

Attorney, Agent or Firm:

Shusaku Yamamoto

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