| 摘要 |
<p>PURPOSE:To provide a toner binder resin composition which provides a toner with an excellent low-temperature fixing property and an excellent preservation property. CONSTITUTION:A toner binder resin composition, comprising a mixture of more than two resins different in molecular weight distribution and having at least one peak in the low molecular weight range of its molecular weight distribution as measured by gel permeation chromatography, contains more than one kind of low molecular weight polymer by 5-90wt.% as a main component in the low molecular weight range, the polymer satisfying an expression: 80<=Tg+79,600/Mw<=101. In the expression, Tg represents a glass transition temperature (C) as measured by DSC and Mw represents a weight average molecular weight as measured by a gel permeation chromatography.</p> |
