EP 0936507 A3 19991117 - Black magnetic composite particles and black magnetic toner using the same
Title (en)
Black magnetic composite particles and black magnetic toner using the same
Title (de)
Schwarzes teilchenförmiges magnetisierbares Verbundmaterial und schwarzer magnetischer Toner das dieses enthält
Title (fr)
Particules composites magnétisables noires et révélateur magnétique noir les contenant
Publication
Application
Priority
JP 5282698 A 19980217
Abstract (en)
[origin: EP0936507A2] Black magnetic composite particles for a black magnetic toner comprising: (a) magnetic iron oxide particles having an average particle diameter of from 0.055 to 0.95 mu m; (b) a coating on the surface of said magnetic iron oxide particles, comprising at least one organosilicon compound selected from: (1) organosilane compounds obtainable by drying or heat-treating alkoxysilane compounds, (2) polysiloxanes or modified polysiloxanes, and (3) fluoroalkyl organosilane compounds obtainable by drying or heat-treating fluoroalkylsilane compounds; and (c) carbon black fine particles adhered on at least a part of said coating, which have a particle size of from 0.002 to 0.05 mu m and which are present in an amount of from 1 to 25 parts by weight per 100 parts by weight of said magnetic iron oxide particles.
IPC 1-7
IPC 8 full level
G03G 9/083 (2006.01); G03G 9/087 (2006.01); G03G 9/09 (2006.01)
CPC (source: EP KR)
G03G 9/083 (2013.01 - EP); G03G 9/0833 (2013.01 - EP KR); G03G 9/0836 (2013.01 - EP); G03G 9/0838 (2013.01 - KR); G03G 9/0839 (2013.01 - EP); G03G 9/08773 (2013.01 - EP); G03G 9/0902 (2013.01 - EP); G03G 9/0904 (2013.01 - EP KR); G03G 9/1138 (2013.01 - KR)
Citation (search report)
- [A] US 4620987 A 19861104 - YAMASHITA HIROSHI [JP], et al
- [A] EP 0373426 A2 19900620 - BAYER AG [DE]
- [A] EP 0439367 A2 19910731 - TODA KOGYO CORP [JP]
- [E] EP 0913431 A2 19990506 - TODA KOGYO CORP [JP]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0936507 A2 19990818; EP 0936507 A3 19991117; KR 100585399 B1 20060530; KR 19990072739 A 19990927
DOCDB simple family (application)
EP 99301117 A 19990216; KR 19990005423 A 19990218