EP 0576472 B1 19960828 - ELECTROSTATIC TONERS CONTAINING A KETO COMPOUND AS CHARGE STABILIZER
Title (en)
ELECTROSTATIC TONERS CONTAINING A KETO COMPOUND AS CHARGE STABILIZER
Title (de)
ELEKTROSTATISCHER TONER, ENTHALTEND EINE KETOVERBINDUNG ALS LADUNGSSTABILISATOR
Title (fr)
TONER ELECTROSTATIQUE CONTENANT UN COMPOSE CETONIQUE COMME STABILISATEUR DE LA CHARGE
Publication
Application
Priority
- DE 4109086 A 19910320
- EP 9200534 W 19920311
Abstract (en)
[origin: WO9216878A1] The invention discloses electrostatic toners containing a polymer binder and as charge stabilizer a compound of formula (I), wherein Z stands for a C1?-C20? alkyl, possibly substituted with phenyl, C5?-C7? cycloalkyl or possibly substituted phenyl, X and Y stand for cyano or a residue of formula -CO-OR?1, -CO-NR?1R?2 or -CO-R?3, wherein R?1 stands for C1?-C20? alkyl, possibly substituted by phenyl, or C5?-C7? cycloalkyl R?2 stands for hydrogen or C1?-C4? alkyl and R?3 for C1?-C20? alkyl, possibly substituted by phenyl, C5?-C7? cycloalkyl or possibly substituted phenyl, or X and Y together stand for a residue of formula -CO-L-CO- or -CO-CH=C(CH3?)-O-CO-, wherein L stands for C2?-C4? alkylene and Kat?+ stands for the equivalent of a cation. Also disclosed is the use of the above mentioned compounds as charge stabilizers in electrostatic toners.
IPC 1-7
IPC 8 full level
G03G 9/097 (2006.01); G03G 9/135 (2006.01)
CPC (source: EP KR US)
G03G 9/0975 (2013.01 - EP US); G03G 9/135 (2013.01 - KR)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
WO 9216878 A1 19921001; CA 2099570 A1 19920921; DE 4109086 A1 19920924; DE 59207011 D1 19961002; EP 0576472 A1 19940105; EP 0576472 B1 19960828; ES 2090613 T3 19961016; JP H06505812 A 19940630; KR 930703632 A 19931130; US 5338639 A 19940816
DOCDB simple family (application)
EP 9200534 W 19920311; CA 2099570 A 19920311; DE 4109086 A 19910320; DE 59207011 T 19920311; EP 92906365 A 19920311; ES 92906365 T 19920311; JP 50551192 A 19920311; KR 930702097 A 19930713; US 9004293 A 19930720