EP 0334840 B1 19930310 - BLUE COLOURING AGENT FOR ELECTROPHOTOGRAPHIC RECORDING PROCESS WITH POSITIVE REGULATING PROPERTIES
Title (en)
BLUE COLOURING AGENT FOR ELECTROPHOTOGRAPHIC RECORDING PROCESS WITH POSITIVE REGULATING PROPERTIES
Publication
Application
Priority
DE 3641525 A 19861205
Abstract (en)
[origin: WO8804442A2] A blue colouring agent with positive regulating properties for electrophotographic recording processes is essentially composed of a compound having the formula (I) and characterized, in the X-ray diffraction pattern, by a strong band at 2 delta DEG (CuK alpha ) 18.47, by three medium bands at 2 delta (CuK alpha ) 18.47, by three medium bands at 2 delta (CuK alpha ) 5.97, 12.01, 13.90 and by three weak wide bands at 2 delta DEG (CuK alpha ) 20.0, 21.7, 22.5, 24.8, 28.2, 30.7, 32.2. The colouring agent is used for producing toners or developers useful for electric photocopying or reproducing documents and for printing electrically, optically or magnetically recorded information or for colour-proofing.
IPC 1-7
IPC 8 full level
G03G 9/097 (2006.01); G03G 9/00 (2006.01); G03G 9/09 (2006.01)
CPC (source: EP KR US)
G03G 9/00 (2013.01 - KR); G03G 9/0912 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
WO 8804442 A2 19880616; WO 8804442 A3 19880728; AU 605475 B2 19910117; AU 6895787 A 19880630; DE 3641525 A1 19880616; DE 3784736 D1 19930415; EP 0334840 A1 19891004; EP 0334840 B1 19930310; JP H02501506 A 19900524; JP H0774918 B2 19950809; KR 890700238 A 19890310; KR 950003308 B1 19950410; US 5061585 A 19911029
DOCDB simple family (application)
EP 8700003 W 19870107; AU 6895787 A 19870107; DE 3641525 A 19861205; DE 3784736 T 19870107; EP 87900805 A 19870107; JP 50081787 A 19870107; KR 880700919 A 19880803; US 66447191 A 19910304