Patent ID: 9594321
Date: 2017-03-14
CPC Classifications: C08K,C08L,G03G

Claim:
1. A binder resin for toner containing a carboxy group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E), a reactant thereof, and a fatty acid metal salt (M) represented by the following general formula (1): wherein n is an integer of 11 to 22, m is 2, and M is a metal atom selected from Zn and Ca, wherein the carboxy group-containing vinyl resin (C) includes a high molecular weight vinyl resin (H) having a peak in a region in which the molecular weight is equal to or more than 2.5×10 wherein the reactant of the carboxy group-containing vinyl resin (C) and the glycidyl group-containing vinyl resin (E) is formed in the presence of the fatty acid metal salt (M), and wherein the mass ratio (H/L) of the high molecular weight vinyl resin (H) to the low molecular weight vinyl resin (L) in the carboxy group-containing vinyl resin (C) is from 55/45 to 85/15.