Toner for developing an electrostatic charge image and toner cartridge containing the toner
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United States of America Patent
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Sep 1, 2015
Grant Date -
Apr 10, 2014
app pub date -
Sep 27, 2013
filing date -
Oct 9, 2012
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Abstract
A toner for developing an electrostatic charge image, including toner particles obtained by dissolving or dispersing a binder resin and an additive in an organic solvent to prepare an oil phase component, and dispersing and granulating the oil phase component in an aqueous medium containing an inorganic dispersant dispersed therein, wherein the binder resin is a polyester resin obtained from an alcohol component, a carboxylic acid component, and a long-chain alkyl group represented by formula (1), the long chain alkyl group being present in a mole percent ranging from 6.5 to 7.5 mol % based on total number of moles of the alcohol component, the carboxylic acid component, and the long-chain alkyl group, and the polyester resin having an acid value of from 4.9 to 7.0 mgKOH/g:
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