GB1390871A - Electrographic developers - Google Patents

Electrographic developers

Info

Publication number
GB1390871A
GB1390871A GB1255173A GB1255173A GB1390871A GB 1390871 A GB1390871 A GB 1390871A GB 1255173 A GB1255173 A GB 1255173A GB 1255173 A GB1255173 A GB 1255173A GB 1390871 A GB1390871 A GB 1390871A
Authority
GB
United Kingdom
Prior art keywords
particles
acid
carboxylic acid
copolymer
carrier
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
GB1255173A
Other languages
English (en)
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
Publication of GB1390871A publication Critical patent/GB1390871A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/10Developers with toner particles characterised by carrier particles
    • G03G9/113Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1132Macromolecular components of coatings
    • G03G9/1133Macromolecular components of coatings obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
GB1255173A 1972-03-21 1973-03-15 Electrographic developers Expired GB1390871A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23676572A 1972-03-21 1972-03-21
US23658472A 1972-03-21 1972-03-21
US23661472A 1972-03-21 1972-03-21

Publications (1)

Publication Number Publication Date
GB1390871A true GB1390871A (en) 1975-04-16

Family

ID=27398879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1255173A Expired GB1390871A (en) 1972-03-21 1973-03-15 Electrographic developers

Country Status (2)

Country Link
FR (1) FR2176899B1 (enExample)
GB (1) GB1390871A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69216285T2 (de) * 1991-05-08 1997-08-07 Mitsubishi Chem Corp Entwickler für die Entwicklung eines elektrostatischen latenter Bildes und elektrophotographisches Entwicklungsverfahren
JPH09185185A (ja) * 1995-12-29 1997-07-15 Hoechst Ind Kk 静電荷像現像用コートキャリア

Also Published As

Publication number Publication date
FR2176899B1 (enExample) 1978-04-28
FR2176899A1 (enExample) 1973-11-02

Similar Documents

Publication Publication Date Title
US3898170A (en) Electrographic carrier vehicle and developer composition
US3795618A (en) Electrographic carrier vehicle and developer composition
US4767688A (en) Charge controlling method and developers containing a charge-exchange control agent comprising organic boron compound
US4291112A (en) Modification of pigment charge characteristics
JPS59139053A (ja) ポリアンハイドライド樹脂含有トナ−組成物
US4259426A (en) Pressure fixable microcapsule toner and electrostatic image developing method
CA1255950A (en) Process for achieving consistent high quality images with magnetic developer composition
US4758493A (en) Magnetic single component toner compositions
US4902597A (en) Carrier for electrophotographic developer
GB1467495A (en) Toner composition for electrostatography
US4879199A (en) Process for preparing encapsulated color toner compositions
GB1390871A (en) Electrographic developers
US4837100A (en) Electrophotographic developer containing positively chargeable toner
US4407925A (en) Process for developing electrostatic images with magnetic toner
US4304830A (en) Toner additives
US4695524A (en) Process for ultra high quality images with magnetic developer composition
JPS58117554A (ja) 電子写真用キヤリア−
US4378420A (en) Process for charging toner compositions
US5154998A (en) Toner for developing electrostatically charged images
JPS5918954A (ja) 圧力定着用磁性トナ−粒子
US4634649A (en) Developer compositions
KR970006283B1 (ko) 전자사진용 정대전성 자성토너의 제조방법
JPH0797243B2 (ja) 電子写真用現像剤
JPS63306460A (ja) 負帯電促進添加剤を含有するトナー組成物
US4599290A (en) Negative charging carrier particles coated with a polymer having appended chlorendate groups

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee