Electrostatic toner containing a keto compound as a charge...

Details Electrostatic toner containing a keto compound as a charge... Electrostatic toner containing a keto compound as a charge...

G - Physics

03

G

G03G 9/135 (2006.01) G03G 9/097 (2006.01)

Patent

CA 2099570

2099570 9216878 PCTABS00016 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-OR1, -CO-NR1R2 or -CO-R3, wherein R1 stands for C1-C20 alkyl, possibly substituted by phenyl, or C5-C7 cycloalkyl R2 stands for hydrogen or C1-C4 alkyl and R3 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.

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