GB1525702A - Electrostatographic developer compositions - Google Patents

Electrostatographic developer compositions

Info

Publication number
GB1525702A
GB1525702A GB3494475A GB3494475A GB1525702A GB 1525702 A GB1525702 A GB 1525702A GB 3494475 A GB3494475 A GB 3494475A GB 3494475 A GB3494475 A GB 3494475A GB 1525702 A GB1525702 A GB 1525702A
Authority
GB
United Kingdom
Prior art keywords
copolymer
toner
carrier
aug
styrene
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
GB3494475A
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
Priority claimed from US05/500,769 external-priority patent/US4078931A/en
Priority claimed from US05/500,774 external-priority patent/US4079166A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB1525702A publication Critical patent/GB1525702A/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
    • G03G9/1133—Macromolecular components of coatings obtained 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

Landscapes

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

Abstract

1525702 Electrostatographic developers XEROX CORP 22 Aug 1975 [26 Aug 1974 (2)] 34944/75 Heading G2C An electrostatographic developer comprises carrier and toner particles at least one of which contains a styrene/alkyl (meth)=acrylate copolymer in which some of the pendent ester groups have been aminolyzed to modify the triboelectric properties. Preferably the copolymer contains up to 25 per cent of units of the Formula wherein X is NH2, OH or H. These copolymers may be used to coat steel beads and may also be cross-tested with tolylene diisocyanate after coating and are then used as coated carriers. Alternatively, the copolymer of the Formula may be mixed with styrene/n butyl methacrylate copolymer, the toner as a toner with a steel or nickel carrier. When the carrier contains the desired copolymer, the toner may be a natural resin, polystyrene, acrylic resins, polyalkylenes, polyesters, epoxy resins or phenolformaldehyde resins. When the toner contains the desired copolymer, it may be admixed with a dye or carbon black and may be used with a magnetic or non-magnetic carrier.
GB3494475A 1974-08-26 1975-08-22 Electrostatographic developer compositions Expired GB1525702A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/500,769 US4078931A (en) 1974-08-26 1974-08-26 Aminolyzed toner compositions and imaging process using same
US05/500,774 US4079166A (en) 1974-08-26 1974-08-26 Aminolyzed carrier coatings

Publications (1)

Publication Number Publication Date
GB1525702A true GB1525702A (en) 1978-09-20

Family

ID=27053634

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3494475A Expired GB1525702A (en) 1974-08-26 1975-08-22 Electrostatographic developer compositions

Country Status (3)

Country Link
CA (1) CA1062945A (en)
GB (1) GB1525702A (en)
NL (1) NL7510084A (en)

Also Published As

Publication number Publication date
CA1062945A (en) 1979-09-25
NL7510084A (en) 1976-03-01

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee