JPS5698202A - Resin for toner of electronic photography - Google Patents

Resin for toner of electronic photography

Info

Publication number
JPS5698202A
JPS5698202A JP46680A JP46680A JPS5698202A JP S5698202 A JPS5698202 A JP S5698202A JP 46680 A JP46680 A JP 46680A JP 46680 A JP46680 A JP 46680A JP S5698202 A JPS5698202 A JP S5698202A
Authority
JP
Japan
Prior art keywords
average molecular
molecular weight
polymer
polymerizer
resin
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.)
Pending
Application number
JP46680A
Other languages
Japanese (ja)
Inventor
Hiroyuki Tanaka
Kiyoshi Ichimura
Akira Hasegawa
Toshiyuki Tanaka
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP46680A priority Critical patent/JPS5698202A/en
Publication of JPS5698202A publication Critical patent/JPS5698202A/en
Pending legal-status Critical Current

Links

Landscapes

  • Developing Agents For Electrophotography (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To prepare a resin for the titled toner, giving a toner with improved fixability and offset resistance and a photograhic image free from transfer nonuniformity and fogging, and suitable for a high-speed copying, by using a multistage emulsion polymer having a ratio of weight average molecular weight to number average molecular weight within a specific range.
CONSTITUTION: A polymerizer is charged with water purified with an ion exchange resin, potassium persulfate, sodium salt of sulfosuccinic acid ester, etc., and a mixture of styrene and butyl methacrylate, etc. is added dropwise to the polymerizer under nitrogen stream with heating to carry out the reaction. After finish of the generation of the polymerization heat, a mixture of styrene, butyl methacrylate and n-octyl mercaptan is added dropwise to the polymerizer to continue the polymerization reaction. After the completion of the reaction, the emulsion is separated by salting out, and dried to obtain a multistage emulsion polymer. The polymer is kneaded together with carbon black with a hot twin roll mill, and pulverized to obtain the objective resin composed mainly of a polymer wherein the ratio of the weight average molecular weight to the number average molecular weight is between 20 and 40.
COPYRIGHT: (C)1981,JPO&Japio
JP46680A 1980-01-07 1980-01-07 Resin for toner of electronic photography Pending JPS5698202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP46680A JPS5698202A (en) 1980-01-07 1980-01-07 Resin for toner of electronic photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46680A JPS5698202A (en) 1980-01-07 1980-01-07 Resin for toner of electronic photography

Publications (1)

Publication Number Publication Date
JPS5698202A true JPS5698202A (en) 1981-08-07

Family

ID=11474567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46680A Pending JPS5698202A (en) 1980-01-07 1980-01-07 Resin for toner of electronic photography

Country Status (1)

Country Link
JP (1) JPS5698202A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56154740A (en) * 1980-05-01 1981-11-30 Fuji Xerox Co Ltd Dry toner
JPS56154741A (en) * 1980-05-01 1981-11-30 Fuji Xerox Co Ltd Toner for pressure fixing
JPS60134248A (en) * 1983-12-23 1985-07-17 Nippon Zeon Co Ltd Electrophotographic toner resin
JPS60220358A (en) * 1984-04-17 1985-11-05 Hitachi Chem Co Ltd Production of toner for electrophotography
JPS60225170A (en) * 1984-04-23 1985-11-09 Hitachi Chem Co Ltd Production of toner for electrophotography
JPS6172258A (en) * 1984-09-17 1986-04-14 Hitachi Chem Co Ltd Manufacture of toner for electrophotography
JPS61167957A (en) * 1985-01-21 1986-07-29 Hitachi Chem Co Ltd Preparation of electrophotographic toner
JPS61167956A (en) * 1985-01-21 1986-07-29 Hitachi Chem Co Ltd Preparation of electrophotographic toner
JPS61167955A (en) * 1985-01-21 1986-07-29 Hitachi Chem Co Ltd Preparation of electrophotographic toner
JPS62108261A (en) * 1985-11-06 1987-05-19 Hitachi Chem Co Ltd Production of toner for electrophotography
US5851714A (en) * 1996-04-02 1998-12-22 Canon Kabushiki Kaisha Toner for developing electrostatic image and fixing method
US6300024B1 (en) 1999-06-30 2001-10-09 Canon Kabushiki Kaisha Toner, two-component type developer, heat fixing method, image forming method and apparatus unit
JP2001281927A (en) * 2000-03-30 2001-10-10 Konica Corp Toner and image forming method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50133242A (en) * 1974-04-10 1975-10-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50133242A (en) * 1974-04-10 1975-10-22

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56154740A (en) * 1980-05-01 1981-11-30 Fuji Xerox Co Ltd Dry toner
JPS56154741A (en) * 1980-05-01 1981-11-30 Fuji Xerox Co Ltd Toner for pressure fixing
JPS60134248A (en) * 1983-12-23 1985-07-17 Nippon Zeon Co Ltd Electrophotographic toner resin
JPS60220358A (en) * 1984-04-17 1985-11-05 Hitachi Chem Co Ltd Production of toner for electrophotography
JPS60225170A (en) * 1984-04-23 1985-11-09 Hitachi Chem Co Ltd Production of toner for electrophotography
JPS6172258A (en) * 1984-09-17 1986-04-14 Hitachi Chem Co Ltd Manufacture of toner for electrophotography
JPS61167957A (en) * 1985-01-21 1986-07-29 Hitachi Chem Co Ltd Preparation of electrophotographic toner
JPS61167956A (en) * 1985-01-21 1986-07-29 Hitachi Chem Co Ltd Preparation of electrophotographic toner
JPS61167955A (en) * 1985-01-21 1986-07-29 Hitachi Chem Co Ltd Preparation of electrophotographic toner
JPS62108261A (en) * 1985-11-06 1987-05-19 Hitachi Chem Co Ltd Production of toner for electrophotography
US5851714A (en) * 1996-04-02 1998-12-22 Canon Kabushiki Kaisha Toner for developing electrostatic image and fixing method
US6300024B1 (en) 1999-06-30 2001-10-09 Canon Kabushiki Kaisha Toner, two-component type developer, heat fixing method, image forming method and apparatus unit
JP2001281927A (en) * 2000-03-30 2001-10-10 Konica Corp Toner and image forming method

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