Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-07-31
1991-12-03
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
430110, C07F 502
Patent
active
050702033
ABSTRACT:
New N,N'-substitutedbis(pyridinium) salts are provided having advantageous utility as charge agents in electrostatographic toners and developers. The salts have the structure: ##STR1## wherein R is alkylene having from 1 to 20 carbon atoms or arylenedialkylene wherein each alkylene moiety has 1 to 6 carbon atoms and the arylene moiety has from 6 to 14 carbon atoms, R' and R", which are the same or different, represent hydrogen, a straight or branched chain alkyl or alkoxy group having from 1 to 24 carbon atoms, aralkyl or alkaryl in which the alkyl group has 1 to 20 carbon atoms and the aryl group has from 6 to 14 carbon atoms, aryl having 6 to 14 carbon atoms which is unsubstituted or aryl having 6 to 14 carbon atoms which is substituted with one or more nitro, alkoxy or halo groups and X and X', which are the same or different, are chlorine, bromine, fluorine or iodine.
REFERENCES:
patent: 3912368 (1975-10-01), Ponjee et al.
patent: 4684596 (1987-08-01), Bonser et al.
Hackh "Chemical Dictionary", McGraw-Hall, 1983, p. 62.
Alexandrovich Peter S.
Wilson John C.
Chang Celia
Eastman Kodak Company
Ivy C. Warren
Montgomery Willard G.
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