JPS57191651A - Electrophotographic liquid developer - Google Patents

Electrophotographic liquid developer

Info

Publication number
JPS57191651A
JPS57191651A JP56076876A JP7687681A JPS57191651A JP S57191651 A JPS57191651 A JP S57191651A JP 56076876 A JP56076876 A JP 56076876A JP 7687681 A JP7687681 A JP 7687681A JP S57191651 A JPS57191651 A JP S57191651A
Authority
JP
Japan
Prior art keywords
monomer
fixing performance
formulai
meth
acrylate
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
JP56076876A
Other languages
Japanese (ja)
Inventor
Kazuo Tsubushi
Hiroshi Tamura
Junichiro Hashimoto
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56076876A priority Critical patent/JPS57191651A/en
Publication of JPS57191651A publication Critical patent/JPS57191651A/en
Pending 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
    • G03G9/12—Developers with toner particles in liquid developer mixtures
    • G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
    • G03G9/131—Developers with toner particles in liquid developer mixtures characterised by polymer components obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Liquid Developers In Electrophotography (AREA)

Abstract

PURPOSE:To obtain a developer superior in fixing performance, storage stability, etc., by carrying out, in a solvent to be used for a carrier, copolymerization of a multifunctional monomer, a monomer having a specified polar group, and a higher alkyl ester monomer, each monomer being (meth)acrylate. CONSTITUTION:A monomer (A) having multifunctions and cross-linking ability, such as ethylene glycol di(meth)acrylate, a monomer (B) having a polar group, such as OH or halogen, represented by the formulaI[in which R is H or CH3, (n) is an integer of 1-20, and X is halogen]and controlling the charging polarity of the resin, and a monomer (C) represented by the formula II[in which R is as R in the formulaI, A is -COOCmH2m+1, -OCOCmH2m+1, and (m) is an integer of 6-20]contributing to enhancing dispersion stability and fixing performance of the resin are mixed in (1-20):(1-50):(20-90)wt. ratio of A:B:C and polymerized in a carrier solvent consisting essentially of a petroleum-derived aliphatic hydrocarbon or its halogenide in presence of a polymerization initiator, thus permitting the obtained liquid developer to form a high-quality image enhanced in storage stability and fixing performance, etc. of the toner and to be suitable for fabrication of a printing plate high in printing resistance and color reproductivity for use in offset printing.
JP56076876A 1981-05-21 1981-05-21 Electrophotographic liquid developer Pending JPS57191651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56076876A JPS57191651A (en) 1981-05-21 1981-05-21 Electrophotographic liquid developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56076876A JPS57191651A (en) 1981-05-21 1981-05-21 Electrophotographic liquid developer

Publications (1)

Publication Number Publication Date
JPS57191651A true JPS57191651A (en) 1982-11-25

Family

ID=13617832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56076876A Pending JPS57191651A (en) 1981-05-21 1981-05-21 Electrophotographic liquid developer

Country Status (1)

Country Link
JP (1) JPS57191651A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606711A (en) * 1983-06-03 1985-01-14 ミネソタ・マイニング・アンド・マニユフアクチユアリング・コンパニ− Manufacture of excipient

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606711A (en) * 1983-06-03 1985-01-14 ミネソタ・マイニング・アンド・マニユフアクチユアリング・コンパニ− Manufacture of excipient

Similar Documents

Publication Publication Date Title
JPS5536237A (en) Antistatic resin composition
JPS5535383A (en) Electrophotographic liquid developer
JPS5533110A (en) Liquid developer for electrophotography
JPS57211157A (en) Resin composition for electrophotographic toner
JPS5627156A (en) Developing powder
JPS57120945A (en) Liquid developer for elecrophotography
JPS57191651A (en) Electrophotographic liquid developer
JPS557855A (en) Preparation of non-aqueous polymer dispersion
JPS5638057A (en) Electrophotographic liquid developer
EP0243726A3 (en) Crosslinked vinyl polymer particles and electrographic elements and liquid developers containing such particles
JPS56110945A (en) Toner for electrostatic charge image development and its production
US4363863A (en) Liquid negative developer compositions for electrostatic copying containing polymeric charge control agent
GB2107893A (en) Dry developer for electrophotography
JPS6448059A (en) Photoresist composition
JPS57114149A (en) Electrostatic latent image developing toner
JPS5679111A (en) Preparation of nonaqueous resin dispersion
JPS57114150A (en) Electrostatic latent image developing toner
JPS5590958A (en) Magnetic toner composition for electrostatic transfer
JPS55155362A (en) Magnetic toner for developing electrostatic charge latent image
JPS57171345A (en) Electrophotographic dry type developer
JPS54130029A (en) Electrostatic charge image toner
JPS57185051A (en) Liquid developing agent for electrostatic photography
JPS5535321A (en) Liquid developer for electrostatic photography
GB2133169A (en) Dry developer composition
JPS57174307A (en) Production of nonaqueous resin dispersion