(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide) cyanomethylene charge- control agents for electrostatotographic toners and developers

摘要

A (1,2-benzisothiazol-3(2H)-ylidene 1,1 -dioxide) cyanomethylene charge control-agent is disclosed. The agent has the structure: ##STR1## R is defined in the specification. They are useful in electrostatographic toners and developers.