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1. CA1314421 - ELECTROPHOTOGRAPHIC TONER

Office
Canada
Application Number 552738
Application Date 25.11.1987
Publication Number 1314421
Publication Date 16.03.1993
Grant Number
Grant Date 16.03.1993
Publication Kind C
IPC
G03G 9/08
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9Developers
08with toner particles
G03G 9/087
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9Developers
08with toner particles
087Binders for toner particles
CPC
G03G 9/08702
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9Developers
08with toner particles
087Binders for toner particles
08702comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
G03G 9/08795
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9Developers
08with toner particles
087Binders for toner particles
08784Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
08795characterised by their chemical properties, e.g. acidity, molecular weight, sensitivity to reactants
G03G 9/08797
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9Developers
08with toner particles
087Binders for toner particles
08784Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
08797characterised by their physical properties, e.g. viscosity, solubility, melting temperature, softening temperature, glass transition temperature
Y10S 526/934
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
526Synthetic resins or natural rubbers -- part of the class 520 series
934Electrodeposit, e.g. electrophoretic, xerographic
G03G 9/08
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
9Developers
08with toner particles
Inventors SHIN, MASAAKI
HIRAYAMA, NOBUHIRO
ISHIKAWA, KEIICHI
MISAWA, AKIRA
Priority Data 1987171087 10.07.1987 JP
Title
(EN) ELECTROPHOTOGRAPHIC TONER
(FR) TONER ELECTROPHOTOGRAPHIQUE
Abstract
(EN) ABSTRACT Electrophotographic toner is provided which contains 30 - 80% by weight of a polymer per total weight of a resin included in the toner, said polymer is obtained by continuously feeding a vinyl monomer, a polymerization initiator and a solvent into a system of 190 - 230°C to conduct polymerization under a liquid state, and said polymer is a vinyl polymer having a number average molecular weight of 1,000 - 5,000 and a glass transition temperature of 40 - 75°C. The preparation method of the electrophotographic toner is also provided. The toner is excellent in the fixing ability at high duplication speed and lower temperatures.