GB1200903A - Developer compositions - Google Patents

Developer compositions

Info

Publication number
GB1200903A
GB1200903A GB30659/67A GB3065967A GB1200903A GB 1200903 A GB1200903 A GB 1200903A GB 30659/67 A GB30659/67 A GB 30659/67A GB 3065967 A GB3065967 A GB 3065967A GB 1200903 A GB1200903 A GB 1200903A
Authority
GB
United Kingdom
Prior art keywords
particles
toner
binder
carrier particles
magnetic
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
GB30659/67A
Inventor
Howard Anthony Miller
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to GB30659/67A priority Critical patent/GB1200903A/en
Publication of GB1200903A publication Critical patent/GB1200903A/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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1139—Inorganic components of coatings
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/108—Ferrite carrier, e.g. magnetite
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1087—Specified elemental magnetic metal or alloy, e.g. alnico comprising iron, nickel, cobalt, and aluminum, or permalloy comprising iron and nickel
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1088—Binder-type carrier
    • G03G9/10882—Binder is obtained by reactions only involving carbon-carbon unsaturated bonds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/98—Raney-type electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

1,200,903. Electrostatographic developers. G.F.C. SELBY-LOWNDES. July 4, 1967, No.30659/67. Heading G2H. [Also in Division H1]. Electrostatographic developer comprises (1) carrier particles formed from a matrix of magnetic particles, electrical conductor particles and a binder, the magnetic particles having a maximum dimension less than 20% of that of the carrier particles, and (2) a toner. The carrier particles may be shaped and preferably contain an iron oxide, soft iron and/or a ferromagnetic alloy containing iron as the magnetic component, carbon as the conductor, a vinyl, styrene, acrylate, methacrylate or alkyl polymer, optionally produced from the monomer in situ, as binder, and optionally a surfactant. The toner may be 0À05-5Á particles of polystyrene pigmented with carbon black and/or black dyes.
GB30659/67A 1967-07-04 1967-07-04 Developer compositions Expired GB1200903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30659/67A GB1200903A (en) 1967-07-04 1967-07-04 Developer compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30659/67A GB1200903A (en) 1967-07-04 1967-07-04 Developer compositions

Publications (1)

Publication Number Publication Date
GB1200903A true GB1200903A (en) 1970-08-05

Family

ID=10311095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30659/67A Expired GB1200903A (en) 1967-07-04 1967-07-04 Developer compositions

Country Status (1)

Country Link
GB (1) GB1200903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317667A1 (en) * 1987-11-24 1989-05-31 Agfa-Gevaert N.V. Magnetic carrier particles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317667A1 (en) * 1987-11-24 1989-05-31 Agfa-Gevaert N.V. Magnetic carrier particles

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee