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METAL COMPLEXES OF PHTHALIC ACIDS AND SALICYLIC ACIDS AS NEGATIVE CHARGE CONTROL ADDITIVES

IP.com Disclosure Number: IPCOM000026627D
Original Publication Date: 1992-Dec-31
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 87K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a negatively charged toner comprised of metal complexes with two ligands and a central metal as a charge additive. Toner compositions comprised of polymer, pigment or dye, and a negative metal complex charge enhancing additive containing an active component whose structure is believed to be essentially represented by the following formula (I): wherein M is a metal; N+ is the counter cation; R and R are substituents such as alkyl, alkoxy, aryloxy, halogen, carbonyl group, alkoxycarbonyl group, amino group, nitro group or mixtures thereof, and the like; m and n represent the number of R and R substituents, and can be a number of from 0 to 3; y-represents the negative charge magnitude of the cation and can be the numbers 1 or 2; and y' represents the number of counter cations N+.

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XEROX DISCLOSURE JOURNAL

METAL COMPLEXES OF Proposed Classification PHTHALIC ACIDS AND SALICYLIC
ACIDS AS NEGATIVE CHARGE
CONTROL ADDITIVES
Beng S. Ong

US. C1.430/106 Int. C1. G03g 09/08

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II II

Y-

R'n y' N +

II

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XEROX DISCLOSURE JOURNAL Vol. 17 No 6 NovembedDecember 1992 491

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fC4H9 II

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METAL COMPLEXES OF PHTHALIC ACIDS AND SALICYLIC ACIDS AS NEGATIVE CHARGE CONTROL ADDITIVES(Cont'd)

Disclosed is a negatively charged toner comprised of metal complexes with two ligands and a central metal as a charge additive.

Toner compositions comprised of polymer, pigment or dye, and a negative metal complex charge enhancing additive containing an active component whose structure is believed to be essentially represented by the following formula (I): wherein M is a metal; N+ is the counter cation; R and R are substituents such as alkyl, alkoxy, aryloxy, halogen, carbonyl group, alkoxycarbonyl group, amino group, nitro group or mixtures thereof, and the like; m and n represent the number of R and R substituents, and can be a number of from 0 to 3; y- represents the negative charge magnitude of the cation and can be the numbers 1 or 2; and y' represents the number of counter cations N+.

Illustrative examples of the substituents R and R' are alkyl groups containing from about 1 carbon atom to 25 carbon atoms such as methyl, ethyl, propyl, butyl, pentyl, cyclohexyl, and the like; alkoxy groups containing f...