主权项 |
1. A polyester resin for a toner, which is a polycondensate of (A) a polycarboxylic acid component and a polyol component including (B) polyol represented by the following general formula (1) and (C) a chain-like aliphatic polyol,
wherein the total amount of (B) the polyol represented by the general formula (1) and (C) the chain-like aliphatic polyol is 60 mol % to 100 mol % in the entire alcohol components, and the molar ratio ((B)/(C)) of (B) the polyol represented by the general formula (1) to (C) the chain-like aliphatic polyol is 0.1 to 1.0: in the general formula (1), each of R1 and R2 independently represents a hydrogen atom or a methyl group, L1 represents a chain-like alkylene group that may have a substituent, or a divalent group obtained by combining the chain-like alkylene group and an ester group or an ether group, each of L2 and L3 independently represents a divalent linking group selected from a group consisting of a carbonyl group, an ester group, an ether group, a sulfonyl group, a chain-like alkylene group that may have a substituent, a cyclic alkylene group that may have a substituent, an arylene group that may have a substituent, or a divalent group obtained by combination thereof, and L1 and L2 or L1 and L3 may form a ring, each of A1 and A2 represents a rosin ester group. |