GB1359819A - Electrophotography - Google Patents

Electrophotography

Info

Publication number
GB1359819A
GB1359819A GB5228571A GB5228571A GB1359819A GB 1359819 A GB1359819 A GB 1359819A GB 5228571 A GB5228571 A GB 5228571A GB 5228571 A GB5228571 A GB 5228571A GB 1359819 A GB1359819 A GB 1359819A
Authority
GB
United Kingdom
Prior art keywords
beads
solution
trialkoxysilane
dec
treatment solution
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
GB5228571A
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.)
Agfa Gevaert NV
Agfa Gevaert AG
Original Assignee
Agfa Gevaert NV
Agfa Gevaert AG
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 Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Priority to GB5228571A priority Critical patent/GB1359819A/en
Publication of GB1359819A publication Critical patent/GB1359819A/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
    • G03G9/1131—Coating methods; Structure 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
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1137—Macromolecular components of coatings being crosslinked
    • 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
    • G03G9/1138—Non-macromolecular organic components of coatings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1359819 Electrostatic carriers AGFA-GEVAERT 30 Dec 1971 [30 Dec 1970 8 Jne 1971] 52285/71 and 52286/71 Divided out of 1359818 Heading B2E An electrostatic carrier is produced by treating glass beads first with a solution of a trialkoxysilane and then with a polymer containing reactive hydrogen atoms. The trialkoxysilane may have the formula Various polymers are specified, including ethyl cellulose which may be applied as a solution containing an azo dye. The beads may be rolled in the treatment solution or the treatment solution may be applied to the beads in a fluidised bed. They may have a diameter of 0.5-0.8 mm. and may be pretreated with a degreasing agent (e.g. chromic acid).
GB5228571A 1970-12-30 1970-12-30 Electrophotography Expired GB1359819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5228571A GB1359819A (en) 1970-12-30 1970-12-30 Electrophotography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5228571A GB1359819A (en) 1970-12-30 1970-12-30 Electrophotography

Publications (1)

Publication Number Publication Date
GB1359819A true GB1359819A (en) 1974-07-10

Family

ID=10463342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5228571A Expired GB1359819A (en) 1970-12-30 1970-12-30 Electrophotography

Country Status (1)

Country Link
GB (1) GB1359819A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436423A1 (en) * 1978-09-12 1980-04-11 Cii Honeywell Bull POWDER FOR THE DEVELOPMENT OF LATENT IMAGES AND ITS MANUFACTURING METHOD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436423A1 (en) * 1978-09-12 1980-04-11 Cii Honeywell Bull POWDER FOR THE DEVELOPMENT OF LATENT IMAGES AND ITS MANUFACTURING METHOD

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee