Charge controllers
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United States of America Patent
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Jan 30, 2007
Grant Date -
Jul 7, 2005
app pub date -
Apr 18, 2003
filing date -
Apr 26, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a safe charge control agent which exhibits an excellent negative chargeability and excellent dispersibility in and compatibility with binder resins, and is even applicable for col or toners. Specifically, the charge control agent consists of a naphthol derivative of formula [I]: ##STR00001## and a salt thereof, and an electrophotographic toner comprising the agent are provided.
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