GB1550555A - Toner powder - Google Patents

Toner powder

Info

Publication number
GB1550555A
GB1550555A GB20005/77A GB2000577A GB1550555A GB 1550555 A GB1550555 A GB 1550555A GB 20005/77 A GB20005/77 A GB 20005/77A GB 2000577 A GB2000577 A GB 2000577A GB 1550555 A GB1550555 A GB 1550555A
Authority
GB
United Kingdom
Prior art keywords
resin
epoxide groups
toner powder
react
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
GB20005/77A
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
Application filed by Oce Van der Grinten NV filed Critical Oce Van der Grinten NV
Publication of GB1550555A publication Critical patent/GB1550555A/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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09733—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
    • C08G59/1455—Monocarboxylic acids, anhydrides, halides, or low-molecular-weight esters thereof
    • 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
    • G03G9/08742—Binders for toner particles comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08753—Epoxyresins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emergency Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The positively chargeable toner powder essentially comprises finely divided, coloured toner particles. The toner particles contain an insulating thermoplastic resin, colorant materials and a polarity-control agent; the thermoplastic resin comprises at least 50 % by weight of an epoxy resin having an epoxy equivalent weight of at least 10,000, where at least 5 % of the epoxide groups of the resin are able to react with a monofunctional carboxylic acid and/or a monofunctional phenol which, apart from the carboxyl or hydroxyl group, respectively, contain(s) no substituents which are able to react with the epoxide groups of the resin under the conditions of the preparation of the toner powder; at most 95 % of the epoxide groups of the resin are modified by intermolecular reaction or by crosslinking with the aid of a polyfunctional epoxy curing agent.
GB20005/77A 1976-05-20 1977-05-12 Toner powder Expired GB1550555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7605372A NL7605372A (en) 1976-05-20 1976-05-20 TONER POWDER FOR DEVELOPING ELECTROSTATIC IMAGES.

Publications (1)

Publication Number Publication Date
GB1550555A true GB1550555A (en) 1979-08-15

Family

ID=19826226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20005/77A Expired GB1550555A (en) 1976-05-20 1977-05-12 Toner powder

Country Status (15)

Country Link
JP (1) JPS609264B2 (en)
AT (1) AT357866B (en)
AU (1) AU505953B2 (en)
BE (1) BE854860A (en)
CA (1) CA1115582A (en)
CH (1) CH626731A5 (en)
DE (1) DE2722974C2 (en)
DK (1) DK150720C (en)
ES (1) ES458636A1 (en)
FR (1) FR2352326A1 (en)
GB (1) GB1550555A (en)
IT (1) IT1082763B (en)
NL (1) NL7605372A (en)
NO (1) NO145214C (en)
SE (1) SE435765B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347342A1 (en) * 2002-03-20 2003-09-24 Ricoh Company, Ltd. Toner for electrophotography

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7810502A (en) * 1978-10-20 1980-04-22 Oce Van Der Grinten Nv TONER POWDER FOR DEVELOPING ELECTROSTATIC IMAGES.
NL7711623A (en) * 1977-10-24 1979-04-26 Oce Van Der Grinten Nv TONER POWDER FOR DEVELOPING LATENT ELECTROSTATIC IMAGES.
JPS54133346A (en) * 1978-04-07 1979-10-17 Mitsubishi Petrochemical Co Toner for electrostatic latent image development
JPS5722248A (en) * 1980-07-15 1982-02-05 Mitsubishi Chem Ind Ltd Electrostatic developing toner
JPS58181057A (en) * 1982-04-19 1983-10-22 Mitsubishi Chem Ind Ltd Electrophotogaphic toner composition
EP0127915B1 (en) * 1983-06-03 1988-12-07 Shell Internationale Researchmaatschappij B.V. Novel polyglycidyl ethers, their preparation and their use as thermosetting coating compositions
DE3583395D1 (en) * 1984-12-04 1991-08-08 Dow Chemical Co Hitzestabiles thermoplastisches harz.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3907693A (en) * 1973-05-21 1975-09-23 Rank Xerox Ltd Liquid developer for electrophotography
BE806408A (en) * 1973-10-23 1974-04-23 Oce Van Der Grinten Nv TONER POWDER FOR DEVELOPING ELECTROSTATIC IMAGES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347342A1 (en) * 2002-03-20 2003-09-24 Ricoh Company, Ltd. Toner for electrophotography

Also Published As

Publication number Publication date
SE435765B (en) 1984-10-15
NO145214B (en) 1981-10-26
SE7705868L (en) 1977-11-21
DE2722974C2 (en) 1986-04-10
NL7605372A (en) 1977-11-22
FR2352326A1 (en) 1977-12-16
ES458636A1 (en) 1978-02-01
JPS52143025A (en) 1977-11-29
AU505953B2 (en) 1979-12-06
DK150720B (en) 1987-06-01
AT357866B (en) 1980-08-11
BE854860A (en) 1977-11-21
CA1115582A (en) 1982-01-05
JPS609264B2 (en) 1985-03-08
NO145214C (en) 1982-02-03
FR2352326B1 (en) 1982-04-16
DK150720C (en) 1987-12-21
IT1082763B (en) 1985-05-21
DK218577A (en) 1977-11-21
AU2406977A (en) 1978-10-12
ATA364777A (en) 1979-12-15
DE2722974A1 (en) 1977-12-01
CH626731A5 (en) 1981-11-30
NO771488L (en) 1977-11-22

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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

Effective date: 19960512