EP0148476A3 - Resin useful for preparing an electrophotograhic toner - Google Patents

Resin useful for preparing an electrophotograhic toner Download PDF

Info

Publication number
EP0148476A3
EP0148476A3 EP84115868A EP84115868A EP0148476A3 EP 0148476 A3 EP0148476 A3 EP 0148476A3 EP 84115868 A EP84115868 A EP 84115868A EP 84115868 A EP84115868 A EP 84115868A EP 0148476 A3 EP0148476 A3 EP 0148476A3
Authority
EP
European Patent Office
Prior art keywords
temperature
preparing
descending
toner
electrophotograhic
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.)
Withdrawn
Application number
EP84115868A
Other languages
German (de)
French (fr)
Other versions
EP0148476A2 (en
Inventor
Jun Saito
Nobuyasu Ohta
Yoshio Wada
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.)
Zeon Corp
Original Assignee
Nippon Zeon Co Ltd
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 Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Publication of EP0148476A2 publication Critical patent/EP0148476A2/en
Publication of EP0148476A3 publication Critical patent/EP0148476A3/en
Withdrawn legal-status Critical Current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
    • G03G9/0825—Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Polymerisation Methods In General (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

A resin useful for preparing an electrophotographic toner, comprising particles of a double layer structure composed of (A) a layer of a low-temperature melting emulsion polymer hav­ ing a 4 mm descending temperature of 90 to 130°C and (B) a layer of a high-temperature melting-emulsion polymer having a 4 mm descending temperature of 130 to 170°C, said particles of the resin having a 4 mm descending temperature of 100 to 150°C. The 4 mm descending temperature is defined as the temperature at which the plunger of a flow tester descends 4 mm in a referential test set forth in JIS K-7210 under condi­ tions involving a die diameter of 1 mm, a die length of 10 mm, a load of 100 kg/cm² and a temperature raising rate of 6°C.
EP84115868A 1983-12-23 1984-12-19 Resin useful for preparing an electrophotograhic toner Withdrawn EP0148476A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58243390A JPS60134248A (en) 1983-12-23 1983-12-23 Electrophotographic toner resin
JP243390/83 1983-12-23

Publications (2)

Publication Number Publication Date
EP0148476A2 EP0148476A2 (en) 1985-07-17
EP0148476A3 true EP0148476A3 (en) 1985-10-30

Family

ID=17103143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115868A Withdrawn EP0148476A3 (en) 1983-12-23 1984-12-19 Resin useful for preparing an electrophotograhic toner

Country Status (4)

Country Link
EP (1) EP0148476A3 (en)
JP (1) JPS60134248A (en)
BR (1) BR8406685A (en)
ES (1) ES8706534A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6353558A (en) * 1986-08-25 1988-03-07 Fuji Xerox Co Ltd Thermal fixing toner
KR100553883B1 (en) 2003-02-26 2006-02-24 삼성전자주식회사 Low temperature fixing toner
JP4208093B1 (en) * 2007-09-03 2009-01-14 株式会社アイメックス Toner production method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7502493A (en) * 1974-04-26 1975-05-30 Xerox Corp Toner material for electrostatographic developers - contg. pigment particles and particles of low and high melting polymers
GB2017949A (en) * 1978-02-27 1979-10-10 Fuji Xerox Co Ltd Electrophotographic toner
US4175962A (en) * 1976-03-22 1979-11-27 Rank Xerox, Ltd. Electrostatographic toner material
GB2078385A (en) * 1980-05-13 1982-01-06 Konishiroku Photo Ind Toner for electrophotography
US4418137A (en) * 1977-06-08 1983-11-29 Canon Kabushiki Kaisha Electrophotographic process
US4473628A (en) * 1981-03-13 1984-09-25 Konishiroku Photo Industry Co., Ltd. Toner for developing of electrostatic latent image

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698202A (en) * 1980-01-07 1981-08-07 Mitsubishi Rayon Co Ltd Resin for toner of electronic photography
JPS5914749B2 (en) * 1980-12-30 1984-04-05 コニカ株式会社 Toner for developing electrostatic images

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7502493A (en) * 1974-04-26 1975-05-30 Xerox Corp Toner material for electrostatographic developers - contg. pigment particles and particles of low and high melting polymers
US4175962A (en) * 1976-03-22 1979-11-27 Rank Xerox, Ltd. Electrostatographic toner material
US4418137A (en) * 1977-06-08 1983-11-29 Canon Kabushiki Kaisha Electrophotographic process
GB2017949A (en) * 1978-02-27 1979-10-10 Fuji Xerox Co Ltd Electrophotographic toner
GB2078385A (en) * 1980-05-13 1982-01-06 Konishiroku Photo Ind Toner for electrophotography
US4473628A (en) * 1981-03-13 1984-09-25 Konishiroku Photo Industry Co., Ltd. Toner for developing of electrostatic latent image

Also Published As

Publication number Publication date
BR8406685A (en) 1985-10-22
JPS60134248A (en) 1985-07-17
ES8706534A1 (en) 1987-07-01
EP0148476A2 (en) 1985-07-17
ES538944A0 (en) 1987-07-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE GB NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE GB NL

17P Request for examination filed

Effective date: 19860228

17Q First examination report despatched

Effective date: 19870203

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870813

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SAITO, JUN

Inventor name: WADA, YOSHIO

Inventor name: OHTA, NOBUYASU