BINDER RESIN FOR COLOR TONERS AND COLOR TONERS MADE BY USING THE SAME

摘要

A binder resin for color toners which comprises a carboxyl -containing vinyl resin (C), a glycidy-containing vinyl resin (E) and a reaction product of both as the essential components and exhibits a storage modulus G' of 20 to less than 800Pa at 160°C at a frequency of measurement of 6.28 radians/s and which contains tetrahydrofuran(THF)-soluble matter exhibiting the main peak within a molecular weight region of 20,000 to less than 40,000 in the molecular weight distribution determined by gel permeation chromatography (GPC) and contains at least one mold-releasing agent having a melting point of 60 to 120°C in an amount of 3.5 to 12% by mass based on the total amount of the resins (C) and (E) and the reaction product (with the total amount taken as 100% by mass).