GB1478417A - Electrostatographic toner composition - Google Patents

Electrostatographic toner composition

Info

Publication number
GB1478417A
GB1478417A GB4900374A GB4900374A GB1478417A GB 1478417 A GB1478417 A GB 1478417A GB 4900374 A GB4900374 A GB 4900374A GB 4900374 A GB4900374 A GB 4900374A GB 1478417 A GB1478417 A GB 1478417A
Authority
GB
United Kingdom
Prior art keywords
nov
melting point
crystalline
amorphous
segmented copolymer
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.)
Expired
Application number
GB4900374A
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of GB1478417A publication Critical patent/GB1478417A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08797—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by their physical properties, e.g. viscosity, solubility, melting temperature, softening temperature, glass transition temperature
    • 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
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08788—Block polymers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1478417 Electrostatographic toner composition XEROX CORP 12 Nov 1974 [23 Nov 1973 (2)] 49003/74 Heading G2H [Also in Division C3] The composition comprises finely divided particles of a uniform mixture of a colourant material and a polymeric material, said polymeric material comprising a segmented copolymer consisting of at least one crystalline or crystallizable polymeric segment chemically linked to at least one amorphous polymeric segment, said segmented copolymer having a glass transition temperature of less than 20‹C and a melting point of at least 45‹C. In the examples a crystalline poly (hexamethylene sebacate) is block copolymerized with an amorphous poly (2-methyl-2-ethyl-1,3- propylene sebacate) with various coupling agents. Carbon black is then incorporated into the block copolymer while heated above its melting point and the mixture is cooled and pulverized to form toner particles of average size of about 20 microns.
GB4900374A 1973-11-23 1974-11-12 Electrostatographic toner composition Expired GB1478417A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41865073A 1973-11-23 1973-11-23
US41862873A 1973-11-23 1973-11-23

Publications (1)

Publication Number Publication Date
GB1478417A true GB1478417A (en) 1977-06-29

Family

ID=27024210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4900374A Expired GB1478417A (en) 1973-11-23 1974-11-12 Electrostatographic toner composition

Country Status (6)

Country Link
JP (1) JPS5087032A (en)
CA (1) CA1036409A (en)
DE (1) DE2440348A1 (en)
FR (1) FR2252595B1 (en)
GB (1) GB1478417A (en)
NL (1) NL7414692A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528257A (en) * 1982-06-17 1985-07-09 Oce-Nederland B.V. Toner powder and method of forming fixed images
US4847175A (en) * 1987-12-02 1989-07-11 Eastman Kodak Company Electrophotographic element having low surface adhesion
US4931375A (en) * 1986-07-22 1990-06-05 Konishiroku Photo Industry Co., Ltd. Powdered electrostatic image developing toner

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665146A (en) * 1979-10-31 1981-06-02 Toyobo Co Ltd Electrophotographic toner
JPS578549A (en) * 1980-06-20 1982-01-16 Fuji Xerox Co Ltd Dry toner
WO1986005602A1 (en) * 1985-03-15 1986-09-25 Konishiroku Photo Industry Co., Ltd. Toner for electrostatic image developement and process for forming image by using it
JPH083660B2 (en) * 1986-06-19 1996-01-17 コニカ株式会社 Toner for developing electrostatic image and image forming method using the same
JPS6366563A (en) * 1986-09-09 1988-03-25 Toyo Ink Mfg Co Ltd Powdery toner
JPH07744B2 (en) * 1988-08-01 1995-01-11 三菱重工業株式会社 Polymer elastomer composition
JP3491883B2 (en) 1999-09-28 2004-01-26 花王株式会社 Binder resin for toner
KR20070013334A (en) * 2004-05-19 2007-01-30 미쓰이 가가쿠 가부시키가이샤 Binder resin for toner, method for production thereof and toner
JP5742007B2 (en) * 2011-03-08 2015-07-01 株式会社リコー Resin for toner, toner and developer containing the resin for toner, and image forming apparatus, image forming method, and process cartridge using the developer
JP5954218B2 (en) * 2013-02-25 2016-07-20 富士ゼロックス株式会社 Electrostatic image developing toner, electrostatic image developer, toner cartridge, developer cartridge, process cartridge, image forming apparatus, and image forming method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528257A (en) * 1982-06-17 1985-07-09 Oce-Nederland B.V. Toner powder and method of forming fixed images
US4931375A (en) * 1986-07-22 1990-06-05 Konishiroku Photo Industry Co., Ltd. Powdered electrostatic image developing toner
US4847175A (en) * 1987-12-02 1989-07-11 Eastman Kodak Company Electrophotographic element having low surface adhesion

Also Published As

Publication number Publication date
FR2252595A1 (en) 1975-06-20
DE2440348A1 (en) 1975-05-28
JPS5087032A (en) 1975-07-12
CA1036409A (en) 1978-08-15
NL7414692A (en) 1975-01-31
FR2252595B1 (en) 1978-11-24

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee