GB1525703A - Electrostatographic developer compositions - Google Patents

Electrostatographic developer compositions

Info

Publication number
GB1525703A
GB1525703A GB3494575A GB3494575A GB1525703A GB 1525703 A GB1525703 A GB 1525703A GB 3494575 A GB3494575 A GB 3494575A GB 3494575 A GB3494575 A GB 3494575A GB 1525703 A GB1525703 A GB 1525703A
Authority
GB
United Kingdom
Prior art keywords
resins
copolymer
toner
aug
electrostatographic
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
GB3494575A
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 US05/500,773 external-priority patent/US4134760A/en
Priority claimed from US05/500,772 external-priority patent/US4076893A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB1525703A publication Critical patent/GB1525703A/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
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08726—Polymers of unsaturated acids or derivatives thereof
    • G03G9/08728—Polymers of esters
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08706—Polymers of alkenyl-aromatic compounds
    • G03G9/08708—Copolymers of styrene
    • G03G9/08711—Copolymers of styrene with esters of acrylic or methacrylic acid
    • 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
    • G03G9/087—Binders for toner particles
    • G03G9/08784—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775
    • G03G9/08791—Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775 characterised by the presence of specified groups or side chains
    • 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

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

1525703 Electrostatographic developers XEROX CORP 22 Aug 1975 [26 Aug 1974(2)] 34945/75 Heading G2C An electrostatographic developer comprising carrier and toner particles at least one of which contains a styrene/alkyl methacrylate copolymer containing pendant hydroxyl or amino groups (preferably produced by aminolysis of pendant ester groups as in Specification 1525702) which are subjected to controlled acylation either kinetically or stoichiometrically to modify triboelectric properties. Preferably the copolymer is of Formula wherein X is NHCOC 6 H 4 R or OCOC 6 H 4 R' where R is NO 2 or OCH 3 and R' is H, Cl, NO 2 or CH 3 . The copolymer may be used as the toner and be admixed with dyes or C black and used with magnetic or non-magnetic carriers. Alternatively the copolymer may be used as the coating on metallic carrier beads and then may be crosslinked and used with a toner such as natural resins, cumarone-indene resins, acrylic resins, polystyrenes, polyesters, epoxy resins and phenolformaldehyde resins.
GB3494575A 1974-08-26 1975-08-22 Electrostatographic developer compositions Expired GB1525703A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/500,773 US4134760A (en) 1974-08-26 1974-08-26 Tribo modified toner materials via acylation
US05/500,772 US4076893A (en) 1974-08-26 1974-08-26 Tribo modified carrier materials via acylation

Publications (1)

Publication Number Publication Date
GB1525703A true GB1525703A (en) 1978-09-20

Family

ID=27053636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3494575A Expired GB1525703A (en) 1974-08-26 1975-08-22 Electrostatographic developer compositions

Country Status (3)

Country Link
CA (1) CA1077324A (en)
GB (1) GB1525703A (en)
NL (1) NL7510083A (en)

Also Published As

Publication number Publication date
CA1077324A (en) 1980-05-13
NL7510083A (en) 1976-03-01

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Legal Events

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