EP 0371360 A3 19901107 - ELECTROPHOTOGRAPHIC TONERS
Title (en)
ELECTROPHOTOGRAPHIC TONERS
Publication
Application
Priority
DE 3840488 A 19881201
Abstract (en)
[origin: CA2004107A1] Electrophotoqraphic toners A b s t r a c t The invention relates to positively charged electrophotographic toners which, in addition to customary resin and pigment particles, contain an additive which intensifies the cationic charge, of the general formula An- (I) wherein R1 and R2 independently of one another represent H, C1-C22-alkyl, allyl, cyclohexyl, phenyl-C1-C2-alkyl or phenyl and An denotes an anion, wherein the ring A and the cyclic and acyclic radicals can carry 1-2 nonionic substituents. Le A 26 448-US
IPC 1-7
IPC 8 full level
G03G 9/097 (2006.01)
CPC (source: EP US)
G03G 9/09758 (2013.01 - EP US)
Citation (search report)
- [X] US 2752346 A 19560626 - GEORG ROSCH, et al
- [X] DE 879100 C 19530609 - BAYER AG
- [X] DD 207908 A1 19840321 - KLAR WOLFGANG, et al
- [A] SU 232421 A
- [A] PATENT ABSTRACTS OF JAPAN vol. 11, no. 49 (P-547)(2496) 14 Februar 1987, & JP-A-61 217055 (CANON INC.) 26 September 1986,
Designated contracting state (EPC)
CH DE FR GB LI NL
DOCDB simple family (publication)
EP 0371360 A2 19900606; EP 0371360 A3 19901107; EP 0371360 B1 19930331; CA 2004107 A1 19900601; DE 3840488 A1 19900607; DE 58903960 D1 19930506; JP H02188763 A 19900724; US 4997740 A 19910305
DOCDB simple family (application)
EP 89121373 A 19891118; CA 2004107 A 19891129; DE 3840488 A 19881201; DE 58903960 T 19891118; JP 30675389 A 19891128; US 43883489 A 19891117