EP 1076267 A1 20010214 - Black magnetic toner and black magnetic composite particles therefor
Title (en)
Black magnetic toner and black magnetic composite particles therefor
Title (de)
Schwarzer magnetischer Toner und hierzu verwendete schwarze magnetische Teilchenzusammensetzung
Title (fr)
Révélateur magnétique noir et composition de particules magnétiques noires, utilisée dans ce révélateur
Publication
Application
Priority
- JP 22782599 A 19990811
- JP 2000131865 A 20000428
Abstract (en)
A black magnetic toner comprises a binder resin and black magnetic composite particles having an average particle diameter of 0.06 to 1.0 mu m and comprising: (a) magnetic iron oxide particles; (b) a coating layer on the surface of said magnetic iron oxide particles, comprising at least one organosilicon compound selected from: (1) organosilane compounds obtainable from alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes; and (c) a carbon black coat which is provided on said coating layer in an amount of 26 to 55 parts by weight per 100 parts by weight of said magnetic iron oxide particles.
IPC 1-7
IPC 8 full level
C01G 49/06 (2006.01); C01G 49/08 (2006.01); G03G 9/083 (2006.01); G03G 9/087 (2006.01); G03G 9/09 (2006.01)
CPC (source: EP)
G03G 9/083 (2013.01); G03G 9/0833 (2013.01); G03G 9/0836 (2013.01); G03G 9/0839 (2013.01); G03G 9/08773 (2013.01); G03G 9/0902 (2013.01); G03G 9/0904 (2013.01)
Citation (search report)
- [X] EP 0913431 A2 19990506 - TODA KOGYO CORP [JP]
- [PX] EP 0936507 A2 19990818 - TODA KOGYO CORP [JP]
- [A] US 4620987 A 19861104 - YAMASHITA HIROSHI [JP], et al
- [A] EP 0439367 A2 19910731 - TODA KOGYO CORP [JP]
- [A] EP 0373426 A2 19900620 - BAYER AG [DE]
- [A] US 4161454 A 19790717 - LU CHIN H [US]
Designated contracting state (EPC)
DE FR GB LU NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00306840 A 20000810; JP 2000131865 A 20000428