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GB2237399A - Electrophotographic toner composition - Google Patents

Electrophotographic toner composition

Info

Publication number
GB2237399A
GB2237399A GB9024263A GB9024263A GB2237399A GB 2237399 A GB2237399 A GB 2237399A GB 9024263 A GB9024263 A GB 9024263A GB 9024263 A GB9024263 A GB 9024263A GB 2237399 A GB2237399 A GB 2237399A
Authority
GB
United Kingdom
Prior art keywords
toner composition
electrophotographic toner
polyester resin
acid value
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9024263A
Other versions
GB9024263D0 (en
Inventor
Nobuo Yamada
Hiroyuki Kamigaki
Fujio Tsutsui
Hisato Miyagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arakawa Chemical Industries Ltd
Original Assignee
Arakawa Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arakawa Chemical Industries Ltd filed Critical Arakawa Chemical Industries Ltd
Publication of GB9024263D0 publication Critical patent/GB9024263D0/en
Publication of GB2237399A publication Critical patent/GB2237399A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/40—Polyesters derived from ester-forming derivatives of polycarboxylic acids or of polyhydroxy compounds, other than from esters thereof
    • C08G63/42—Cyclic ethers; Cyclic carbonates; Cyclic sulfites; Cyclic orthoesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/91—Polymers modified by chemical after-treatment
    • C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08755—Polyesters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

The electrophotographic toner composition comprising a colorant dispersed in a binder resin according to the present invention is characterized in that the binder resin comprises a polyester resin of an acid value of below 5 prepared by the reaction of a starting polyester resin of an acid value of 5 to 50 with a glycidylic compound having at least one glycidyl group which can react with the remaining carboxyl groups of said polyester resin. This composition has remarkably improved environmental characteristics as compared with the conventional toner composition while retaining moderate offset resistance, blocking resistance, and low-temperature fixability, so that it can be suitably used as the electrophotographic toner composition for both high-speed and full-color copiers.
GB9024263A 1989-03-10 1990-11-08 Electrophotographic toner composition Withdrawn GB2237399A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6405489 1989-03-10
PCT/JP1990/000305 WO1990010893A1 (en) 1989-03-10 1990-03-08 Electrophotographic toner composition

Publications (2)

Publication Number Publication Date
GB9024263D0 GB9024263D0 (en) 1991-01-02
GB2237399A true GB2237399A (en) 1991-05-01

Family

ID=13246995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9024263A Withdrawn GB2237399A (en) 1989-03-10 1990-11-08 Electrophotographic toner composition

Country Status (2)

Country Link
GB (1) GB2237399A (en)
WO (1) WO1990010893A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241019A (en) * 1990-07-30 1993-08-31 Mitsui Toatsu Chemicals, Inc. Binder for dry toner
EP0658818A1 (en) * 1993-12-06 1995-06-21 Xerox Corporation Toner compositions with compatibilizer
EP0703502A1 (en) * 1994-07-22 1996-03-27 Kabushiki Kaisha Toshiba Positively-charging mono-component toner and developing method using same
EP0989466A2 (en) * 1998-09-25 2000-03-29 Dainippon Ink And Chemicals, Inc. Toner for non-magnetic single component development
EP0994395A2 (en) * 1998-09-25 2000-04-19 Dainippon Ink And Chemicals, Inc. Toner composition and developer for electrostatic image development

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7049041B2 (en) 2002-02-28 2006-05-23 Sanyo Chemical Industries, Ltd. Resin for toner binder and toner composition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159173A (en) * 1983-03-01 1984-09-08 Mitsui Toatsu Chem Inc Dry type toner
JPS6090344A (en) * 1983-10-25 1985-05-21 Canon Inc Toner for electrophotography
JPS62215962A (en) * 1986-03-18 1987-09-22 Dainippon Ink & Chem Inc Electrostatic charge image developing toner
JPS62226161A (en) * 1986-03-26 1987-10-05 Arakawa Chem Ind Co Ltd Electrophotographic toner composition superior in low temperature fixability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59159173A (en) * 1983-03-01 1984-09-08 Mitsui Toatsu Chem Inc Dry type toner
JPS6090344A (en) * 1983-10-25 1985-05-21 Canon Inc Toner for electrophotography
JPS62215962A (en) * 1986-03-18 1987-09-22 Dainippon Ink & Chem Inc Electrostatic charge image developing toner
JPS62226161A (en) * 1986-03-26 1987-10-05 Arakawa Chem Ind Co Ltd Electrophotographic toner composition superior in low temperature fixability

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241019A (en) * 1990-07-30 1993-08-31 Mitsui Toatsu Chemicals, Inc. Binder for dry toner
EP0658818A1 (en) * 1993-12-06 1995-06-21 Xerox Corporation Toner compositions with compatibilizer
EP0703502A1 (en) * 1994-07-22 1996-03-27 Kabushiki Kaisha Toshiba Positively-charging mono-component toner and developing method using same
EP0989466A2 (en) * 1998-09-25 2000-03-29 Dainippon Ink And Chemicals, Inc. Toner for non-magnetic single component development
EP0994395A2 (en) * 1998-09-25 2000-04-19 Dainippon Ink And Chemicals, Inc. Toner composition and developer for electrostatic image development
EP0994395A3 (en) * 1998-09-25 2000-12-27 Dainippon Ink And Chemicals, Inc. Toner composition and developer for electrostatic image development
EP0989466A3 (en) * 1998-09-25 2001-01-03 Dainippon Ink And Chemicals, Inc. Toner for non-magnetic single component development
US6238836B1 (en) 1998-09-25 2001-05-29 Dainippon Ink Chemicals, Inc. Toner composition and developer for electrostatic image development
US6248493B1 (en) 1998-09-25 2001-06-19 Dainippon Ink And Chemicals, Inc. Toner for non-magnetic single component development

Also Published As

Publication number Publication date
WO1990010893A1 (en) 1990-09-20
GB9024263D0 (en) 1991-01-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)