GB1427933A - Developer powder for the development of electrostatic images - Google Patents

Developer powder for the development of electrostatic images

Info

Publication number
GB1427933A
GB1427933A GB5861172A GB5861172A GB1427933A GB 1427933 A GB1427933 A GB 1427933A GB 5861172 A GB5861172 A GB 5861172A GB 5861172 A GB5861172 A GB 5861172A GB 1427933 A GB1427933 A GB 1427933A
Authority
GB
United Kingdom
Prior art keywords
indene
styrene
particles
copolymer
acrylonitrile 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
GB5861172A
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.)
Canon Production Printing Holding BV
Original Assignee
Oce Van der Grinten NV
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
Priority to ES421381A priority Critical patent/ES421381A1/en
Application filed by Oce Van der Grinten NV filed Critical Oce Van der Grinten NV
Priority to GB5861172A priority patent/GB1427933A/en
Priority to AU62698/73A priority patent/AU473677B2/en
Priority to ZA738929A priority patent/ZA738929B/en
Priority to CH1693473A priority patent/CH589878A5/xx
Priority to NL7316641A priority patent/NL7316641A/xx
Priority to AT1029073A priority patent/AT328862B/en
Priority to IT70710/73A priority patent/IT1000508B/en
Priority to DE2362410A priority patent/DE2362410A1/en
Priority to SE7317038A priority patent/SE389404B/en
Priority to JP48142298A priority patent/JPS4991449A/ja
Priority to FR7345495A priority patent/FR2213517B1/fr
Priority to BE139034A priority patent/BE808829A/en
Publication of GB1427933A publication Critical patent/GB1427933A/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
    • G03G9/087Binders for toner particles
    • G03G9/08702Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08735Polymers of unsaturated cyclic compounds having no unsaturated aliphatic groups in a side-chain, e.g. coumarone-indene resins
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/087Binders for toner particles
    • G03G9/08702Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08706Polymers of alkenyl-aromatic compounds
    • G03G9/08708Copolymers of styrene
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/087Binders for toner particles
    • G03G9/08702Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08726Polymers of unsaturated acids or derivatives thereof
    • G03G9/08731Polymers of nitriles

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1427933 Developer composition OCE-VAN DER GRINTEN NV 18 Dec 1973 [19 Dec 1972] 58611/72 Heading G2H [Also in Division C3] Electrostatic image developer powders comprise coloured thermoplastic resin particles, the resin constituent of which consists of at least 50 wt per cent of a copolymer of at least 50 wt per cent of styrene with indene or an alkyl indene and optionally acrylonitrile, optionally in admixture with carrier granules, e.g. of sand, glass, quartz, metal oxides or iron. The particles may be electroscopic and may contain polarity control agents, e.g. organic dyestuffs and 2 (#-styryl) quinolinium salts of organic and inorganic acids, or the particles may be conductive, carrying on their surfaces 5 to 15 wt per cent of conductive carbon black and optionally incorporating iron or ferrite particles. Examples describe electroscopic developers comprising carbon black together with (1 and 5) styrene/indene/acrylonitrile copolymer and nigrosine, (2) styrene/indene/acrylonitrile copolymer and Crystal Violet stearate, (3) styrene/indene/ acrylonitrile copolymer and (4) styrene/indene copolymer and nigrosine, 1,2, 4 and 5 being mixed with iron granules and 3 with glass granules; and (6) a conductive developer comprising styrene/ indene/acrylonitrile copolymer particles coated with conductive carbon black.
GB5861172A 1972-12-19 1972-12-19 Developer powder for the development of electrostatic images Expired GB1427933A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ES421381A ES421381A1 (en) 1972-12-19 1972-12-09 Developer powder for the development of electrostatic images
GB5861172A GB1427933A (en) 1972-12-19 1972-12-19 Developer powder for the development of electrostatic images
AU62698/73A AU473677B2 (en) 1972-12-19 1973-11-20 Developer powder forthe development of electrostatic images
ZA738929A ZA738929B (en) 1972-12-19 1973-11-23 Developer powder for the development of electrostatic images
CH1693473A CH589878A5 (en) 1972-12-19 1973-12-04
NL7316641A NL7316641A (en) 1972-12-19 1973-12-05
AT1029073A AT328862B (en) 1972-12-19 1973-12-10 DEVELOPMENT POWDER
IT70710/73A IT1000508B (en) 1972-12-19 1973-12-14 DETECTING POWDER FOR THE DEVELOPMENT OF ELECTROSTATIC IMAGES
DE2362410A DE2362410A1 (en) 1972-12-19 1973-12-15 DEVELOPING POWDER AND ITS USE FOR THE DEVELOPMENT OF ELECTROSTATIC IMAGES
SE7317038A SE389404B (en) 1972-12-19 1973-12-17 DEVELOPER POWDER FOR THE DEVELOPMENT OF ELECTROSTATIC IMAGES.
JP48142298A JPS4991449A (en) 1972-12-19 1973-12-18
FR7345495A FR2213517B1 (en) 1972-12-19 1973-12-19
BE139034A BE808829A (en) 1972-12-19 1973-12-19 POWDER DEVELOPER FOR DEVELOPING ELECTROSTATIC IMAGES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5861172A GB1427933A (en) 1972-12-19 1972-12-19 Developer powder for the development of electrostatic images

Publications (1)

Publication Number Publication Date
GB1427933A true GB1427933A (en) 1976-03-10

Family

ID=10481996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5861172A Expired GB1427933A (en) 1972-12-19 1972-12-19 Developer powder for the development of electrostatic images

Country Status (13)

Country Link
JP (1) JPS4991449A (en)
AT (1) AT328862B (en)
AU (1) AU473677B2 (en)
BE (1) BE808829A (en)
CH (1) CH589878A5 (en)
DE (1) DE2362410A1 (en)
ES (1) ES421381A1 (en)
FR (1) FR2213517B1 (en)
GB (1) GB1427933A (en)
IT (1) IT1000508B (en)
NL (1) NL7316641A (en)
SE (1) SE389404B (en)
ZA (1) ZA738929B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821422A1 (en) * 1977-05-17 1978-12-14 Mita Industrial Co Ltd DEVELOPER OF ELECTROSTATIC IMAGES AND PROCESS FOR THEIR PRODUCTION

Also Published As

Publication number Publication date
AT328862B (en) 1976-04-12
AU6269873A (en) 1975-05-22
JPS4991449A (en) 1974-08-31
FR2213517B1 (en) 1979-07-20
FR2213517A1 (en) 1974-08-02
ES421381A1 (en) 1976-09-01
IT1000508B (en) 1976-04-10
ZA738929B (en) 1974-10-30
NL7316641A (en) 1974-06-21
BE808829A (en) 1974-06-19
ATA1029073A (en) 1975-06-15
AU473677B2 (en) 1976-07-01
CH589878A5 (en) 1977-07-15
DE2362410A1 (en) 1974-07-11
SE389404B (en) 1976-11-01

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Legal Events

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