TONER BINDER AND TONER
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United States of America Patent
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Issued Date -
Mar 17, 2011
app pub date -
Mar 27, 2009
filing date -
Mar 31, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A toner excellent in low temperature fixability and blocking resistance, and a toner binder are provided. The present invention is a toner binder containing a crystalline resin (A) having a maximum peak temperature of heat of fusion (Ta) of 40 to 100.degree. C., a ratio between the softening point and Ta (softening point/Ta) ranging from 0.8 to 1.55, and a melting start temperature (X) within a temperature range of (Ta.+-.30).degree. C., and satisfying the following requirements; and a toner containing the toner binder and a coloring agent: [Requirement 1] G'(Ta+20)=50 to 1.times.10.sup.6 [Pa] [Requirement 2] |log G''(X+20)-log G''(X)|>2.0 [G': storage elastic modulus [Pa], G'': loss elastic modulus [Pa]].
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