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US 4,789,615 AGranted
Toner compositions with nicotinate charge enhancing additives
AssigneeXerox Corporation
InventorsRoger N. Ciccarelli, Jacques C. Bertrand
Life of this patent
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Abstract
Negatively charged toner compositions comprised of resin particles, pigment particles, and as a charge enhancing additive metal salts of the following formula: ##STR1## wherein R is selected from the group consisting of hydrogen and aliphatic substituents; each x is of equal value and represents the number 1, 2, or 3; and M is selected from the group consisting of hydrogen and metals.
Claims53
A negatively charged toner composition comprised of resin particles, pigment particles, and as a charge enhancing additive metal salts of the following formula:
- ##STR3## wherein R is selected from the group consisting of hydrogen and aliphatic substituents;
- each x is of equal value and represents the number 1, 2, or 3;
- and M is aluminum.
Dependencies are inferred from the claim text.