Global Patent Index - EP 0072176 B1

EP 0072176 B1 19860326 - TONERS FOR DEVELOPING ELECTROSTATIC IMAGE

Title (en)

TONERS FOR DEVELOPING ELECTROSTATIC IMAGE

Publication

EP 0072176 B1 19860326 (EN)

Application

EP 82304081 A 19820802

Priority

  • JP 12181681 A 19810805
  • JP 12477881 A 19810811
  • JP 12477981 A 19810811
  • JP 12478081 A 19810811

Abstract (en)

[origin: EP0072176A1] There is disclosed a toner for developing electrostatic image which comprises a polymer obtained by polymerization of a vinyl monomer in the presence of two or more polymerization initiators, said initiators having different half-life periods. The toner for developing electrostatic image according to the present invention can be used for fixation with heating roller without production of offset phenomenon of the toner even when a fixing roller without any supply of an offset inhibiting liquid onto the surface thereof is employed.

IPC 1-7

G03G 9/08; G03G 9/10; G03G 9/14

IPC 8 full level

G03G 9/087 (2006.01); G03G 9/097 (2006.01)

CPC (source: EP)

G03G 9/08702 (2013.01); G03G 9/09733 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0072176 A1 19830216; EP 0072176 B1 19860326; DE 3270107 D1 19860430

DOCDB simple family (application)

EP 82304081 A 19820802; DE 3270107 T 19820802