Calix arene charge control agent and toner for developing electr

Details Calix arene charge control agent and toner for developing electr Calix arene charge control agent and toner for developing electr

1997-08-04

1999-09-14

Rodee, Christopher D.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430124, G03G 9097

Patent

active

059521457

ABSTRACT:
Charge control agent and toner for developing electrostatic images comprising such a charge control agent whose active ingredient is a calix (n) arene compound of formula I: ##STR1## wherein x+y=n; x and y each is an integer of 1 or more; n is an integer of 4-8; the x repeat units and y repeat units can be arranged in any order; R.sup.1 and R.sup.2 each is H, C.sub.1-12 alkyl, C.sub.2-12 alkenyl, C.sub.7-12 aralkyl, phenyl, C.sub.4-8 cycloalkyl, halogen, nitro, amino, alkyl- or phenyl-substituted amino, --Si(CH.sub.3).sub.3, or --SO.sub.3 H; and of the n R radicals in the --OR groups, 1 to (n-1) are H, with the remaining (n-1) to 1 being alkyl, alkenyl, phenyl, aralkyl, cycloalkyl, R.sup.4 is H or lower alkyl and m is an integer of 1-3!, --(CH.sub.2 ##STR2##

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