GB1344365A - Electrostatographic developers - Google Patents

Electrostatographic developers

Info

Publication number
GB1344365A
GB1344365A GB2080471A GB2080471A GB1344365A GB 1344365 A GB1344365 A GB 1344365A GB 2080471 A GB2080471 A GB 2080471A GB 2080471 A GB2080471 A GB 2080471A GB 1344365 A GB1344365 A GB 1344365A
Authority
GB
United Kingdom
Prior art keywords
polymer coating
diallyl
beads
metals
toner particles
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
GB2080471A
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 GB1344365A publication Critical patent/GB1344365A/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
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

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)

Abstract

1344365 Electrostatographic developer mixture XEROX CORP 19 April 1971 [3 Feb 1970] 20804/71 Heading B2E [Also in Divisions C1 C3 and G2] An electrostatographic developer mixture comprises finely-divided toner particles electrostatically clinging to the surface of beads each comprising a core coated with a polyester prepared from diallyl isophthalate, diallyl phthalate or diallyl chlorendate or mixtures or prepolymers thereof. The toner particles may consist of carbon black dispersed in a resin. The bead core may be of NaCl, NH 4 Cl, AlKCl 4 NaNO 3 , KClO 3 , zircon, Si, SiO 2 , flintshot, ferite, carborundum, Rochelle salt, glass, polymethyl methacrylate, iron, steel or nickel. Metals, non-metals, metal compounds, phthalocyanines and other organic compounds (many specified) in particulate form may be added to the polymer coating material to alter the triboelectric value of the coated carrier. The polymer coating can be applied to the beads as a monomeric solution or a prepolymer solution by mixing, dipping or spraying followed by curing. When incorporating the above additives, the polymer coating composition may also be applied as a powder, dispersion, emulsion or hot melt by fluidised bed coating tumbling or brushing.
GB2080471A 1970-02-03 1971-04-19 Electrostatographic developers Expired GB1344365A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US841270A 1970-02-03 1970-02-03

Publications (1)

Publication Number Publication Date
GB1344365A true GB1344365A (en) 1974-01-23

Family

ID=21731460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2080471A Expired GB1344365A (en) 1970-02-03 1971-04-19 Electrostatographic developers

Country Status (8)

Country Link
US (1) US3672928A (en)
JP (1) JPS4926910B1 (en)
BE (1) BE762415A (en)
CA (1) CA941209A (en)
DE (1) DE2104555A1 (en)
FR (1) FR2078221A5 (en)
GB (1) GB1344365A (en)
NL (1) NL7101414A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914181A (en) * 1971-07-08 1975-10-21 Xerox Corp Electrostatographic developer mixtures comprising ferrite carrier beads
GB1419504A (en) * 1972-05-22 1975-12-31 Agfa Gevaert Electrophotographic toner composition
US3916065A (en) * 1972-12-18 1975-10-28 Xerox Corp Electrostatographic carrier particles
US3944705A (en) * 1973-07-26 1976-03-16 Kanzaki Paper Manufacturing Company, Ltd. Electrostatic recording material and manufacture thereof
US3916064A (en) * 1974-01-21 1975-10-28 Xerox Corp Developer material
US3908046A (en) * 1974-02-25 1975-09-23 Xerox Corp P-xylene vapor phase polymerization coating of electrostatographic particles
US3970571A (en) * 1974-12-20 1976-07-20 Eastman Kodak Company Method for producing improved electrographic developer
JPS5866949A (en) * 1981-10-16 1983-04-21 Fuji Photo Film Co Ltd Capsulated toner
US4599290A (en) * 1985-01-02 1986-07-08 Eastman Kodak Company Negative charging carrier particles coated with a polymer having appended chlorendate groups
JPH061392B2 (en) * 1985-03-08 1994-01-05 株式会社リコー Carrier for electrostatic latent image developer

Also Published As

Publication number Publication date
FR2078221A5 (en) 1971-11-05
DE2104555A1 (en) 1971-08-12
CA941209A (en) 1974-02-05
US3672928A (en) 1972-06-27
BE762415A (en) 1971-08-02
NL7101414A (en) 1971-08-05
JPS4926910B1 (en) 1974-07-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee