Electrostatic image developing toner and image forming method
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United States of America Patent
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Aug 31, 2004
Grant Date -
Jul 17, 2003
app pub date -
Jan 10, 2003
filing date -
Jan 11, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Electrostatic image developing toner includes fixing resin; and wax. The wax is hydrocarbon-based wax. The wax is containing, as its constitutional components, first wax and second wax. The first wax is higher than 1.5 in ratio of weight average molecular weight (Mw) to number average molecular weight (Mn), lower than 10 mPa.multidot.s in melt viscosity at 140.degree. C. and higher than 75% and not higher than 85% in degree of crystallinity. The second wax is not higher than 1.5 in ratio of weight average molecular weight (Mw) to number average molecular weight (Mn), lower than 10 mPa.multidot.s in melt viscosity at 140.degree. C. and higher than 85% and not higher than 95% in degree of crystallinity.
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