Toner for electrostatic image development
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United States of America Patent
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May 7, 2013
Grant Date -
Jun 21, 2012
app pub date -
Dec 2, 2011
filing date -
Dec 20, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A toner for electrostatic image development containing an external additive comprising composite oxide particles made of titania and silica (external additive A), and hydrophobic silica particles (external additive B), wherein the external additive A has a core-shell structure in which a core portion is made of titania and a shell portion is made of silica, wherein the titania is contained in the external additive A in an amount of from 75 to 95% by weight, and wherein the external additive B has a carbon content of from 2.8 to 6.0% by weight. The toner for electrostatic image development of the present invention is suitably used in, for example, the development or the like of latent image formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.
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