EP 0718704 A1 19960626 - Electrophotographic toner and developer
Title (en)
Electrophotographic toner and developer
Title (de)
Elektrophotographischer Toner und Enwickler
Title (fr)
Toner et révélateur électrophotographique
Publication
Application
Priority
- JP 29538394 A 19941129
- JP 32352394 A 19941130
- JP 32352494 A 19941130
Abstract (en)
The present invention provides a toner comprising at least a fixing resin and a colorant, wherein a graft polymer consisting of a main chain of a styrene polymer and a graft chain represented by the following general formula (1) is formulated. This toner is superior in low-temperature fixing properties without causing blocking or offset. Furthermore, when the colorant is retained in or on the graft polymer particle, the dispersion properties of the colorant are also improved. In addition, a developer obtained by using the above toner in combination with a magnetic carrier wherein the surface of a magnetic particle is coated with a coat layer of a silicone resin or a fluororesin is superior in charging properties of the toner. <IMAGE>
IPC 1-7
IPC 8 full level
G03G 9/087 (2006.01)
CPC (source: EP KR)
G03G 9/08 (2013.01 - KR); G03G 9/08786 (2013.01 - EP); G03G 9/08706 (2013.01 - EP)
Citation (applicant)
- JP H04277753 A 19921002 - HITACHI CHEMICAL CO LTD
- JP S62191858 A 19870822 - MITSUI TOATSU CHEMICALS
- JP H0252362 A 19900221 - TOMOEGAWA PAPER CO LTD
- JP H03155568 A 19910703 - BANDO CHEMICAL IND
- EP 0402882 A2 19901219 - BANDO CHEMICAL IND [JP]
Citation (search report)
- [A] DE 4018986 A1 19901220 - SANYO CHEMICAL IND LTD [JP]
- [DA] DATABASE WPI Week 9331, Derwent World Patents Index; AN 93-245563
- [A] DATABASE WPI Week 9236, Derwent World Patents Index; AN 92-295472
- [A] DATABASE WPI Week 8731, Derwent World Patents Index; AN 87-360336
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
DOCDB simple family (application)
EP 95308608 A 19951129; KR 19950044546 A 19951129