Binder resin for electrostatic image developing toner, binder resin liquid dispersion for electrostatic image developing toner, electrostatic image developing toner and production processes thereof

摘要

A binder resin for an electrostatic image developing toner is obtained by a polycondensation reaction of a polycarboxylic acid and a polyol, wherein the polycarboxylic acid includes a compound represented by at least one of formula (1) and formula (2) as defined in the specification in an amount of from about 50 to about 100 mol %; the polyol includes a compound represented by formula (3) as defined in the specification in an amount of from about 10 to about 100 mol %; and a content of a catalyst-originated metal element in the binder resin is about 100 ppm or less <?in-line-formulae description="In-line Formulae" end="lead"?>R1OOCA1mB1nA1lCOOR1' (1)<?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>R2OOCA2pB2qA2rCOOR2' (2)<?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>HOXh-Ph-Y-Ph-XkOH (3).<?in-line-formulae description="In-line Formulae" end="tail"?>