Claims
- 1. A toner composition comprising a polymeric binder and a 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamide charge-control agent having the structure ##STR13## wherein R and R.sup.1 represent hydrogen, C.sub.1 to C.sub.18 alkyl, C.sub.6 to C.sub.10 aryl; or R and R.sup.1, together with N, form a ring structure.
- 2. The toner of claim 1 wherein R represents, 2-chloroethyl, methyl, t-butyl, octadecyl, benzyl, cyclohexyl, phenyl, 1-naphthyl, 4-chlorophenyl, 3-nitrophenyl, 4-nitrophenyl, 3-methoxy-4-methylphenyl, 3,4,5-trichlorophenyl, 2,3,5,6-tetrafluorophenyl, 2,3,4,5,6-pentafluorophenyl and 4-nitro-1-naphthyl; R.sup.1 represents hydrogen or methyl; or R and R.sup.1, together with N, represent ethyleneimine, azetidine, pyrrolidine, piperidine or hexamethyleneimine.
- 3. The toner of claim 1 wherein R represents benzyl, 4-chlorophenyl or 3-nitrophenyl and R.sup.1 represents hydrogen.
- 4. A toner composition according to claim 1,2 or 3 wherein the binder is a polyester having a glass transition temperature of 50.degree. to 100.degree. C. and a weight average molecular weight of 10,000 to 100,000.
- 5. A toner composition according to claim 1 wherein the binder is a polyester that is the non-linear reaction product of a dicarboxylic acid and a polyol blend of etherified diphenols.
- 6. A toner composition according to claim 5 wherein the binder is a poly(etherified bisphenol A fumarate).
- 7. An electrostatographic developer comprising a carrier and a toner composition according to claim 1.
CROSS REFERENCE TO RELATED APPLICATIONS
The present application is related to the following titled applications, all in the name of Wilson and Fields and all filed on the same day as the present case:
U.S. Ser. No. 08/815,032, filed Mar. 14, 1997, entitled BIS�2-(1,2-BENZISOTHIAZOL-3(2H) -YLIDENE 1,1-DIOXIDE)-2-CYANOACETAMIDE! CHARGE-CONTROL AGENTS FOR ELECTROSTATOGRAPHIC TONERS AND DEVELOPERS now U.S. Pat. No. 5,716,749.
U.S. Ser. No. 08/816,098, filed Mar. 14, 1997, entitled BIS�2-(1,2-BENZISOTHIAZOL-3(2H) -YLIDENE 1,1-DIOXIDE) CYANOACETATES! CHARGE-CONTROL AGENTS FOR ELECTROSTATOGRAPHIC TONERS AND DEVELOPERS now U.S. Pat. No. 5,719,000.
U.S. Ser. No. 08/881,667, filed Mar. 14, 1997, entitled (1,2-BENZISOTHIAZOL-3(2H) -YLIDENE 1,1-DIOXIDE) CYANOACETATES CHARGE-CONTROL AGENTS FOR ELECTROSTATOGRAPHIC TONERS AND DEVELOPERS.
U.S. Ser. No. 08/815,036, filed Mar. 14, 1997, entitled (1,2-BENZISOTHIAZOL-3(2H) -YLIDENE 1,1-DIOXIDE)-CYANOMETHYLENES CHARGE-CONTROL AGENTS FOR ELECTROSTATOGRAPHIC TONERS AND DEVELOPERS now U.S. Pat. No. 5,821,024.
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