Patent ID: 8568950

Claim:
A polyester resin for a toner, comprising: a polycondensate of a polyvalent carboxylic acid component and a polyhydric alcoholic component, wherein the polyhydric alcoholic component contains a rosin diol represented by the following Formula (1) and a content of the rosin diol is 80 mole % to 100 mole % based on the total polyhydric alcoholic component: wherein each of R 1 and R 2 independently represents a hydrogen atom or a methyl group; L 1 represents a divalent linking group having the following Formula (I); each of L 2 and L 3 independently represents a divalent linking group selected from the group consisting of carbonyl groups, carboxyl groups, ether groups, sulfonyl groups, substituted or unsubstituted chained alkylene groups, substituted or unsubstituted cyclic alkylene groups, substituted or unsubstituted arylene groups, and combinations thereof; and each of A 1 and A 2 independently represents a rosin ester group: