Charge control agent and toner comprising the same
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United States of America Patent
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Oct 4, 2011
Grant Date -
Sep 18, 2008
app pub date -
May 23, 2007
filing date -
Mar 12, 2007
priority date (Note) -
Expired
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Abstract
Taught herein is a charge control agent comprising a specific type of gallic acid metal complex represented by the following Chemical Formula (1) or Chemical Formula (2):represents an alkyl group containing 1-12 carbon atoms, a substituted or unsubstituted aryl group containing 6-12 carbon atoms, a potassium atom, a sodium atom or a hydrogen atom. M represents a divalent to tetravalent metal atom, A is a counterion, m is a number from 1 to 3, and n is 1 or 2.
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